Caltrops
n. 三角钉
🗣️ 情景例句
Excuse me, but may I ask how old you are?
对不起， 我能问一下你多大了吗？
May I ask you to wait here for ten minutes?
请在这里稍等片刻，可以吗？
That's what we did in China in the old days, before thermoses were invented, said Wei Hua.
“那是我们中国从前未发明出热水瓶时的做法。”魏华说。