表示on/off的数据类型是

表示on/off的数据类型是

on 介词：
(表示位置)在…上, 在…旁, 在…身边
That book on the desk is an atlas.

(表示时间)在…之时
It occurred on the morning of the fifteenth.

(表示方向)向, 往, 朝; 沿着, 顺着
They marched on the enemy's fortress.

(表示状态)系于, 悬于; 附于
A picture hangs on the wall.

(表示方式)乘, 坐, 骑
She will leave on an early train.

(表示对象)对, 对于, 碰在, 对…造成困难
There is much to be said on both sides.

(表示原因)由于, 因为
The old worker retired on account of age.

(表示比较)与…相比
Today's weather is an improvement on yesterday's.

(表示方位)在…方位
The town stands on the left bank of the river.

副词 adv.(放, 穿, 连接)上
He has new shoes on.

向前, (继续)下去
She worked on quietly all night.

off 介词prep.(表示位置)在…的外面, 在…的沿海
The boat anchored off the fort.

(表示时间)在…之前
It is a few minutes off three o'clock.

(表示方向)从…, 通向, 偏离, 从…离开
He fell off the ladder.

(表示比较)低于, 不及
They are selling the bikes off the market price.

(表示否定)不想, 不做
He is off tea.
他不想喝茶。

(表示来源)从…
He borrowed a pound off me.
。
(表示依附)依靠
This bear feeds off the leaves of the tree.

副词 adv.离开
They drove off.

脱落
He's had his beard shaved off.

断开
The radio is off.

光, 完
His money was off yesterday.

休息
We are off one day.
形容词 adj.休息的; 闲散的; 安静的
The winter is an off season.

This fish has gone off.
这条鱼已不新鲜。

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