He is inconsistent in his loyalty: sometimes he supports us, sometimes he's against us. 他并非一贯忠心耿耿，有时支持我们，有时反对我们。
When the third goal was scored against us, we knew the match was past redemption. 对方一射进第三个球，我们就知道这场比赛算是输定了。
If we impose import duties, other countries may retaliate against us. 我们若徵收进口税，别的国家就可能报复我们。
The general conjectures that the enemy will launch an attack against us this night. 将军推测说敌人将于今天晚上突袭我们。
He's a member of the other team and secretly let us know who his side were going to field against us at the next match, so we gave him ten pounds conscience money. 他是另一个队的队员，他暗中告诉我们下一场比赛中他的队谁将上场同我们对阵，因此我们给了他10英镑追偿金。
