prep.反对;对…不利;紧靠;以防;
例句:
He did not go to the bar against his father's will.
他违背了他父亲的意愿,没有当律师.
She harboured resentment against her stepmother.
她对继母怀有怨恨.
The conference begins this week against a backdrop of unmitigated gloom.
会议这个星期在一片愁云惨雾中开始.