diff --git a/plusone-validator/src/main/java/xyz/zhouxy/plusone/validator/BasePropertyValidator.java b/plusone-validator/src/main/java/xyz/zhouxy/plusone/validator/BasePropertyValidator.java
index e3843ac..47e8621 100644
--- a/plusone-validator/src/main/java/xyz/zhouxy/plusone/validator/BasePropertyValidator.java
+++ b/plusone-validator/src/main/java/xyz/zhouxy/plusone/validator/BasePropertyValidator.java
@@ -129,46 +129,46 @@ public abstract class BasePropertyValidator< //
         return thisObject();
     }
 
-    // ===== isTrue =====
+    // ===== must =====
 
-    public TPropertyValidator isTrue(Predicate<? super TProperty> condition) {
-        return isTrue(condition, "无效的用户输入");
+    public TPropertyValidator must(Predicate<? super TProperty> condition) {
+        return must(condition, "无效的用户输入");
     }
 
-    public TPropertyValidator isTrue(Predicate<? super TProperty> condition, String errMsg) {
-        return isTrue(condition, convertExceptionCreator(errMsg));
+    public TPropertyValidator must(Predicate<? super TProperty> condition, String errMsg) {
+        return must(condition, convertExceptionCreator(errMsg));
     }
 
-    public <E extends RuntimeException> TPropertyValidator isTrue(
+    public <E extends RuntimeException> TPropertyValidator must(
             Predicate<? super TProperty> condition,
             Supplier<E> exceptionCreator) {
-        return isTrue(condition, convertExceptionCreator(exceptionCreator));
+        return must(condition, convertExceptionCreator(exceptionCreator));
     }
 
-    public <E extends RuntimeException> TPropertyValidator isTrue(
+    public <E extends RuntimeException> TPropertyValidator must(
             Predicate<? super TProperty> condition,
             Function<TProperty, E> exceptionCreator) {
         withRule(condition, exceptionCreator);
         return thisObject();
     }
 
-    // ===== isTrue =====
+    // ===== must =====
 
-    public TPropertyValidator isTrue(Collection<Predicate<? super TProperty>> conditions) {
-        return isTrue(conditions, "无效的用户输入");
+    public TPropertyValidator must(Collection<Predicate<? super TProperty>> conditions) {
+        return must(conditions, "无效的用户输入");
     }
 
-    public TPropertyValidator isTrue(Collection<Predicate<? super TProperty>> conditions, String errMsg) {
-        return isTrue(conditions, convertExceptionCreator(errMsg));
+    public TPropertyValidator must(Collection<Predicate<? super TProperty>> conditions, String errMsg) {
+        return must(conditions, convertExceptionCreator(errMsg));
     }
 
-    public <E extends RuntimeException> TPropertyValidator isTrue(
+    public <E extends RuntimeException> TPropertyValidator must(
             Collection<Predicate<? super TProperty>> conditions,
             Supplier<E> exceptionCreator) {
-        return isTrue(conditions, convertExceptionCreator(exceptionCreator));
+        return must(conditions, convertExceptionCreator(exceptionCreator));
     }
 
-    public <E extends RuntimeException> TPropertyValidator isTrue(
+    public <E extends RuntimeException> TPropertyValidator must(
             Collection<Predicate<? super TProperty>> conditions,
             Function<TProperty, E> exceptionCreator) {
         for (Predicate<? super TProperty> condition : conditions) {
diff --git a/plusone-validator/src/test/java/xyz/zhouxy/plusone/validator/test/BaseValidatorTest.java b/plusone-validator/src/test/java/xyz/zhouxy/plusone/validator/test/BaseValidatorTest.java
index b65d14d..018682d 100644
--- a/plusone-validator/src/test/java/xyz/zhouxy/plusone/validator/test/BaseValidatorTest.java
+++ b/plusone-validator/src/test/java/xyz/zhouxy/plusone/validator/test/BaseValidatorTest.java
@@ -37,7 +37,7 @@ class BaseValidatorTest {
            int thisYear = Year.now().getValue();
 
             ruleForString(RegisterCommand::getUsername)
-                    .isTrue(PredicateTools.<String>from(Objects::nonNull)
+                    .must(PredicateTools.<String>from(Objects::nonNull)
                             .and(StringTools::isNotEmpty)
                             .and(StringTools::isNotBlank)
                             .and(username -> RegexTools.matches(username, PatternConsts.USERNAME)),