Question

against
a.gainst  AHD[…-gµnst“]   DJ[*6genst]  KK[*6gWnst]
prep.（介词）
1.In a direction or course opposite to:
    逆：与某个方向或过程相反：
    row against the current.
    逆水行舟
2.So as to come into forcible contact with:
    对撞：为与…达成猛烈接触：
    waves dashing against the shore.
    拍岸的波涛
3.In contact with so as to rest or press on:
    倚在；紧靠着：与…接触为了休息或按压：
    leaned against the tree.
    斜靠着树
4.In hostile opposition or resistance to:
    反抗；抵抗：处于敌对状况或与…相抗衡：
    struggle against fate.
    同命运抗争
5.Contrary to; opposed to:
    与…相反；对：
    against my better judgment.
    与我的判断相反
6.In contrast or comparison with the setting or background of:
    对照；对比：以…的布景或背景相对比：
    dark colors against a fair skin.
    深色衬托出白皙的肌肤
7.In preparation for; in anticipation of:
    预期；以备：为…作准备；期待着…：
    food stored against winter.
    为过冬贮备的食物
8.As a defense or safeguard from:
    预防；防御：以…为防御或保护对象：
    protection against the cold.
    预防感冒
9.To the account or debt of:
    兑换；提取：作为帐上的应收款项或作为…的借项：
    drew a check against my bank balance.
    开支票支取自己的银行结余
10.Directly opposite to; facing.
    正对着；面向
ORIGIN
1.Middle English
    中古英语
2.alteration ofagaines
    againes的变化
3.from Old Englishongeagn
    源自 古英语ongeagn