be stuck for somethingto be unable to think what to say or do 词穷句蹇，不知所措 For once Anthony was stuck for words (=did not know what to say). 就这一次安东尼无话可说了。
be stuck for something• Most of what they accused him of was true, and Wyden was stuck for an answer.• I was stuck for an answer.• Antony for once was stuck for words.
→ be stuck for something at stuck2(3)