Celestine
[化] 天青石\\n[医] 天青石
🗣️ 情景例句
Don't open the door if you don't know who it is.
如果有陌生人敲门不要开门。
Button holes are very hard to sew.
要缝钮扣洞非常难。
Seeing is believing.
百闻不如一见。