They were already waiting at the gate when I got there.当我到达那里时,他们已等候在门口了。2.在...时刻 Jane will meet her boy friend at Christmas.简将在圣诞节和她男友见面。3.向,朝,对着 Don't shout at me.别对我叫喊。4.在...方面 He is an expert at troubleshooting.他是...
when分别可以用on,in,at造句 when+on When can you put on this performance?你们什么时候能上演这个节目?when+in When will you swim in the river?你将什么时候在河里游泳?when +at When can we knock at the door?我们什么时候可以敲门?
ing形式。at用法:1.表示“从事”或“正在做”,其后接的名词通常不用冠词。2.通常表示地点、场所、活动等,通常用汉语的“在”翻译,但有时它可以表示起点,相当于汉语“从”。3.at可以与“人名+’s”连用,指其家或工作处。
at the top of “在……顶点上、在……上”。at 表示点,在句子中用作状语,既可表示“在(房子、山等平面的)顶上”;亦可表示“在(某事物)上部,局(某事物)首位”。There is a tree at the top of the hill. 那座小山上有棵树。He is at the top of the class.他居全班之首位...
1 at once 马上,立刻 I will get up at once. 我马上就起床。She went home at once. 她马上就回家了。2 at a loss 亏本的;困惑不解的 They sold goods at a loss. 他们亏本卖掉了货物。He is now at a loss. 他现在很困惑。3 at last 最后,终于 He won the game at last. 他...