weak link

剑桥词典

a weak part , especially the weakest part of something
薄弱的環節
They're a fairly good team - their only weak link is a relatively inexperienced goalkeeper . 他們是一支相儅強的球隊——唯一的薄弱環節就是守門員相對來說經騐不足。
A chain can only be as strong as its weakest link , so we must look at the least committed country to see if the alliance will hold . 一條鏈子的強度取決於它最薄弱的環節。所以必須觀察最不堅定的成員國來確定聯盟是否牢固。 返回 weak link