PHRASAL VERB [no cont](在沉默了一阵之后)开始说话,开始讲话(尤指说出令人吃惊或奇怪的事情) If someone who has been silent for a while pipes up, they say something, especially something surprising or strange. (在沉默了一阵之后)开始说话,开始讲话(尤指说出令人吃惊或奇怪的事情)
'That's right, mister,' another child piped up. [VERBPREP. with quote]
“没错,先生,”另一个孩子突然说道。
At which point I piped up and asked whether it might be at all possible to have some positive input. [VERBPREP.]