against:
1、 反对与……相反违反
I'd advise you against doing that.我劝你不要做那事。
2、 对……不利
Her age is against her.她的年龄对她不利。
3、 紧靠碰撞
The rain beat against the windows.雨点击打着窗户。
4、 以防
An injection against rabies.狂犬病预防注射。
5、 以……为背景衬托
His red clothes stood out clearly against the snow.他的红衣服在白雪中格外显眼。
6、 和……相比
You must weigh the benefits against the cost.你一定要权衡利益与成本的得失。
competition
1、 竞争角逐
We are in competition with four other companies for the contract.我们在与其他四家公司竞争这项合同。
2、 比赛竞赛
3、 竞争者对手
We'll be able to assess the competition at the conference.我们可以在会议上对竞争对手进行评估。
