Concavoconcave
[医] 对凹的, 双凹的
🗣️ 情景例句
Come in please, and take a seat.
请进。请坐。
It's a long story.
说来话长。
Gandhi returned to India in 1915 and was honoured as a hero.
甘地于1915年回到印度时，被推崇为英雄。