Sinkhead
[冶]浇口杯, 补缩冒口
🗣️ 情景例句
Columbia's a terrific school.
Columbia，是一所很棒的学校。
The frog in well knows nothing of the great ocean.
井底之蛙不知汪洋大海。
Sorry, he's not at home.
对不起，他不在家。