grope for somethingto try hard to find the right words to say or the right solution to a problem but without any real idea of how to do this 努力寻找〔恰当的言辞或正确的解决办法〕 She hesitated, seeming to grope for words. 她犹豫了一下，像是在寻找恰当的词语。
→ grope for something at grope1(1)