all of A sudden，这个表达中的a不能没有吧

武汉加油

) z  ^' u* m7 X火眼睛睛的我认为经济学人这里又写错了，
8 M! [7 B6 Z& o5 X& `: j从朗读版验证了一下，读的确实是all of a sudden.
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liqima

这种的不用单独开贴问吧

0 _% O  s8 m" G+ \9 x直接查词典它不香吗？

逆风的香

根据Linggle显示，all of a sudden 占绝大多数，all of sudden可能错误，例句占比很少，但从数量上来看也是有一些的。
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mxh3698

To err is human, to forgive divine
It is humanly impossible for books, magazines to be free of typos, right

oversky

. V, g% z" K) GYouglish

" R5 X* {# g4 gall of a sudden in English (1 out of 13106):
  T6 ^- R2 s& w7 Jall of sudden in English (1 out of 14133):
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口语占比有一半以上。

sparkler

all of sudden 用得少一些吧，牛津和朗文都有例句：
朗文： ** In spring training I started off good with my throwing, and then all of sudden it declined. **
牛津：All of sudden he does this incredible run where he goes up two octaves and back down in quadruple time.