diffidence

n.

缺乏自信；

1. We set his silence down to his diffidence.
   我们把他的沉默归之于羞怯。
2. The outer crust of her life, all of her natural diffidence and reserve, was torn away.
   她的生活的外壳，她的一切天生的羞怯和庄重，全撕破了。

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