dieback是什么意思音标:英 [da'ɪi:bæk]美 [da'ɪi:bæk]

顶梢枯死, 顶死

n. 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 cpmateinduced 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