adj. 上面的,高架的;头顶上的;(费用等)经常的,管理的;
n. 天花板;管理费用,经常费用;船舱的顶板;[体](网球等的)扣杀;
adv. 在头顶上;在空中;在楼上;向上;
over在上、在外、从上、越过 + head头 → 在头顶上的;架空的
🗣️ 情景例句
This weekend I'm going to install a home security system.
这个周末我要装一套家庭保安系统。
I think that should do it.
我想这样就可以了。
The Native Americans caught and trained them and were then able to use them to carry their goods when they travelled from one camping ground to another.