to render sth(sb) harmless/useless/ineffective/ meaningless/ speechless
使某事物无害 / 无用 / 无效/无意义/沉默
render /ˈrendər/
vt.提供;使成为;使变得;使处于某状态;给予;回报;递交;呈献;提交
v.提供;给予;提交;翻译;表达;（用不同的语言）表达;粉刷;将（脂肪）熬成油
n.粉刷;(墙壁的)初涂;抹灰;精制油
It contained so many errors as to render it worthless.
它错误太多，所以毫无用处。
The news rendered her speechless.这个消息使她变得默默无言。
His back injury had rendered him unfit for work.他的背伤使他无法胜任这份工作。
These tests were so seriously flawed as to render the results meaningless.
这些测试存在严重错误，致使结果变得毫无意义。
Hundreds of people were rendered homeless by the earthquake.
成百上千的人因为地震而无家可归。
The bad news rendered us all speechless from shock.
这个坏消息使大家惊愕得说不出话来。
His brilliance renders this film an indubitable classic.
他的出色表现让这部电影成为了毋庸置疑的经典。
render解释为“使成为”时，后面可以跟宾语和表语。它的宾语后不能跟带to的不定式，如：
The weather rendered the trip difficult.（对）
The weather rendered the trip to be difficult.（错）
这样的天气让旅程变得困难。
to render a service to sb
给某人提供服务
to render sb a service
为某人服务
We are going to render them economic assistance.
我们打算向他们提供经济援助。
They rendered assistance to the disaster victims.
他们给灾民提供了援助。
She had a chance to render some service to his country...
她有了一个为国服务的机会。
