adj.發(fā)育不全的;不發(fā)達的
動詞underdevelop的過去式和過去分詞.
He had underdeveloped lungs, like a premature baby. 它像一個早產(chǎn)的嬰兒,肺部發(fā)育不全。
In rare cases, these organs are underdeveloped or missing. 在罕見的案例里,這些器官發(fā)育不良或缺乏。
Lumbering is very important in some underdeveloped countries. 在一些不發(fā)達的國家,伐木業(yè)十分重要。