againstprep.反对；逆；违背；倚靠；映衬；防御；相比；相对against movement逆动, 逆向运动againsted natureadj.违反自然(违反本性)against our willadv.违背意愿地(违心地)against all odds不顾一切against all risk全险Against humanity罔顾人道against senility抗衰老against the wind顶风, 逆风against the hairadj.不合本意(违反本意)against lighting防雷

1. The car has been specially treated against rust.
   这辆汽车经过专门的防锈处理。
2. Don't leave the bike in the rain and let it rust.
   不要让自行车在雨里淋，注意防锈。