against
1.fight, strive, struggle等词后面接against和接with意思相仿，但用against着重在困难中抵抗，如We fight for the weak against the strong。
2.against是介词，但有时把它的宾语省去。例如：
- He had intended to come but somehow decided against (=against it).
- After I made my suggestion, the verdict of all the members except John was in its favour, but his was against (=against it).
