以备不时之需; 未雨绸缪地

1. 未雨绸缪地：again 又 | against a rainy day 未雨绸缪地 | against all odds 不计成败

2. (以备不时之需)：against a rainy day(以备不时之需) | against one's inclination(不愿意,违反本意) | against one's will(违背心愿;未获得...的允许)