preposition [位置和方向]在…之上;向,朝;关于;在…时候;由…支撑;(身上)带着;一…就;吃,喝;接近;根据;挣…钱;以…支付;以…为燃料;在…中;作为…成员;借助(仪器或器械);与…相比
We were on a hill, right on the edge of town.
adverb [方式副词]在上面;向前地;继续着,行动中;穿着;(娱乐演出等)上演;(电器)开着地;当班
I'm forever on a diet, since I put on weight easily.
adjective [原级]开着的;发生着的,正在进行中;之后;覆盖;附着(尤指在正确的位置上);写着的;正在播出的
The old men blather on and on.
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