介词 prep.
1.(表示方向)与…方向相反, 逆着, 迎着, 顶着
You should fly your kite against the wind.
你应该迎着风放风筝.
She always advances against difficulties.
她总是迎着困难上.
2.(表示方位)紧靠着…, 倚靠着…
The seats have no back against which to lean.
这些座位都没有靠背可倚.
3.(表示对象)对…不利, 对…有害; 和…碰撞, 与…撞击; 预防, 以…为抵御对象; 以…为竞争对手; 违反, 违背
The present economic climate works against the smaller companies.
当前的经济气候对小公司不利.
4.(表示目的)为…做准备, 防备…之用
She is preparing a substantial meal against his return.
她正在准备一顿丰盛的饭菜为他接风.
5.(表示态度)反对, 反抗
He fought against the disease for a long time.
他同疾病做了长时间的斗争.
6.(表示依据)以…为标准
I checked my watch against the steeple clock.
我根据教堂尖塔的大钟对了表.
7.以…兑换, 以…交换
Please deliver this package against payment of cost.
请把这件货物送去, 把货款带回.
8.(表示对比)和…比, 和…对照; 以…为背景
He is elected by a majority of 40 votes against 10.
他以40票对10票的大多数票当选.
The mountain looks magnificent against the sky.
在蓝天的衬托下, 这座山显得雄伟壮丽.
形容词 adj.
1.(对措施、提议等)反对的；对立的；对抗的
2.(尤指成功、机会等)可能性不大的；不利的