Whatchamacallit
n. =what-you-may-call-it
🗣️ 情景例句
Yes. I'm sorry, but how do you spell your last name, sir?
好的，不过对不起，先生你的姓怎么拼？
If I had had time,I would have called you.
如果我有时间，我就打电话给你了。
Have you decided which boat to take, Sir?
先生，您决定用哪只船了吗？