Perchlorethylene
n. [化]全氯乙烯
🗣️ 情景例句
Thanks, Grandpa. Please sit down.
谢谢你， 爷爷。请坐。
Do you build sand castles when you go to the beach?
你去沙滩的时候，堆沙丘城堡了吗？
You must never jump the queue.
决不可“夹塞儿”。