dieback是什么意思
音标:英 [da’ɪi:bæk]美 [da’ɪi:bæk]
顶梢枯死, 顶死
a disease of plants characterized by the gradual dying of the young shoots starting at the tips and progressing to the larger branches
dieback的用法和例句：
1.
For example, triggering a climateinduced dieback of the rainforest, turning it into a savannah.
比如气候会导致雨林枯梢现象 使之变成稀树草原
