Arcs
n. 弧, 弧线( arc的名词复数 ); 弧形物
🗣️ 情景例句
You might want to read up a little on the culture before you get there.
去那儿之前，你应该读一些关于那边文化方面的书。
His presence in the room was not noticed.
没有人注意到他在房间里。
The moment you leave this tent, you will get a big surprise.
您一走出这个帐篷，就会大吃一惊。