Courtesies
n. 谦恭有礼, 礼貌, 请安( courtesy的名词复数 ); 有礼貌的举止[言词]; 承蒙
✅ 同义词
🗣️ 情景例句
This spring is the origin of the brook.
这泉水是那条小河的源头。
You must come right away.
你必须马上过来。
It is bacteria that have generated the oxygen we breathe on earth.
正是细菌生产出我们在地球上呼吸的氧气。