adv. 1.在上，在头顶上，高高地；在楼上；在空中。 2.从头到脚全部没入。 短语和例子 O- the stars were out. 天上星星出来了。 plunge overhead into water 扑咚地跳入水中。 adj. 1.头顶上的；架空的；架设的。 2.所有的，总的。 3.平均的。 4.通常开支的。 短语和例子 an overhead railway 〔英国〕高架铁路。 overhead seam 搭缝。 overhead wires 架空线。 overhead irrigation 人工降雨。 the overhead charges [expenses] 【商业】经常费，总开销。 n. 1.企业一般管理费用。 2.天花板；【造船】船舱的顶板。 3.【化学】塔顶馏出物。 4.【体育】(网球等的)扣杀。
above the head; over the head; "bring the legs together overhead"
above your head; in the sky; "planes were flying overhead"
above the head; over the head; "bring the legs together overhead"
above your head; in the sky; "planes were flying overhead"
located or originating from above; "an overhead crossing"
a hard return hitting the tennis ball above your head 同义词：smash,
(nautical) the top surface of an enclosed space on a ship
a transparency for use with an overhead projector 同义词：viewgraph,
(computer science) the disk space required for information that is not data but is used for location and timing 同义词：disk overhead,
the expense of maintaining property (e.g., paying property taxes and utilities and insurance); it does not include depreciation or the cost of financing or income taxes 同义词：operating expense, operating cost, budget items,
(computer science) the processing time required by a device prior to the execution of a command 同义词：command processing overhead time, command processing overhead, command overhead,
例句与用法
1.
All the overhead fluorescence was on . 头顶上的荧光灯全都打开了。
2.
The sky overhead throbbed and pulsed with light . 天色瞬息万变。
3.
A number of birds are circling overhead . 很多鸟在头顶上空盘旋。
4.
There was the sound of a jet aircraft overhead . 上空一架喷气机呼啸而过。
5.
He picked stemware from the slotted overhead . 他从头上方橱架上取下高脚餐具。
6.
Still another aircraft reverberated overhead . 上空又是一架飞机发出震耳的轰鸣声。
7.
The leaves overhead were now in their latter green . 头上的树叶正处于绿色期的后期。
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