fall back

... 陈腐的，变坏了的;(酒)走了味的：stale 撤退;退缩(求助于;投靠;转而依靠)：fall back (on) 彻底的;完全的;详尽的;精心的：thorough ...

 throw oneself into the lap of

... throw oneself into the breach 挺身而出担当重任 throw oneself into the lap of 投靠 throw oneself into 投身于 ...

 become retainer of

... become purple with rage 面孔气得发紫 become retainer of 投靠 become sober 清醒 ...