diff --git a/app/src/main/java/com/k2fsa/sherpa/onnx/MainActivity.kt b/app/src/main/java/com/k2fsa/sherpa/onnx/MainActivity.kt
index 2a9ca39..486ac57 100644
--- a/app/src/main/java/com/k2fsa/sherpa/onnx/MainActivity.kt
+++ b/app/src/main/java/com/k2fsa/sherpa/onnx/MainActivity.kt
@@ -2301,7 +2301,11 @@ class MainActivity : AppCompatActivity() {
                 !targetLangOk(tr) -> {
                     val sample = tr.replace("\n", " ")
                     Log.i(TAG, "TAP-MISS sid=$sid reason=langdrift temp=$temp" +
-                            " sample=" + sample.take(24) + srcTag)
+                            " sample=" + sample.take(24) +
+                            // 早前版本只打前 24 字,曾误导"译文看起来没问题为何拒"
+                            // ——判错常在后半段(尾巴滑回源语言),尾 16 字必打
+                            " tail=" + sample.takeLast(16) +
+                            " len=" + sample.length + srcTag)
                     if (sample == lastRej) return null
                     lastRej = sample
                     // 漂移一次即弃治疗直接升档:1B 对中文口语/文学体的