Catenary
n. 链, 悬链线, 链状物\\na. 悬链线的
🗣️ 情景例句
OK, Robbie, maybe you should watch him. Robbie
也许你得看着他点。
You will leap for joy when you hear the answer.
如果你听到了答案，你会高兴的跳起来的。
Which may keep company with the vessel for an hour without visible or more than occasional movement of wing.
它们随船飞行一小时也难得见其扇动一下翅膀。