adj. 预防的；防止的
v. 预防；防止（prevent的ing形式）

Prevent \Pre*vent"\, v. t. [imp. & p. p. {Prevented}; p. pr. &
vb. n. {Preventing}.] [L. praevenire, praeventum; prae before
+ venire to come. See {Come}.]
1. To go before; to precede; hence, to go before as a guide;
to direct. [Obs.]

We which are alive and remain unto the coming of the
Lord shall not prevent them which are asleep. --1
Thess. iv. 15.

We pray thee that thy grace may always prevent and
follow us. --Bk. of
Common Prayer.

Then had I come, preventing Sheba's queen. --Prior.

2. To be beforehand with; to anticipate. [Obs.]

Their ready guilt preventing thy commands. --Pope.

3. To intercept; to hinder; to frustrate; to stop; to thwart.
``This vile purpose to prevent.'' --Shak.

Perhaps forestalling night prevented them. --Milton.