羞怯的英文：
cannot say bo to a goose
cannot say boh to a goose
coyness
diffidence
modesty
pudency
pudicity
shyness
timidity
timidness

参考例句：

She poked fun at Alec because he was shy and stodgy
她开亚历克的玩笑，因为他羞怯，同时还有些沉闷。

A sheepish smile
羞怯的微笑

Shrink up:try to make oneself small and inconspicuous out of shyness,etc.
由于羞怯等畏缩

(of behaviour,etc) showing that one is timid,reserved,etc
(指行为等)羞怯的,腆的

Become more shy,reserved,etc
越发羞怯、沉默等

Her inherent modesty
她天生的羞怯

shyness made her halt as she talked
羞怯使得她说话吞吞吐吐。

She is bashful about speaking in public
她在公开场合讲话会羞怯。

Mary's bearing indicated that she was very timid.
玛丽的举止表明她很羞怯。

The quality or state of being diffident;timidity or shyness.
缺乏自信；胆怯缺乏自信的性质或状态；胆小的或羞怯的

cannot是什么意思：
v. 不能，无法

This achievement cannot be bettered.
这一成就好得不能再好了。

If you have a bad cold you cannot taste.
如果患了重感冒，就尝不出味道。

The received wisdom is that they cannot win.
大家一致认为他们不会赢。

say是什么意思：
v. 说，讲；讲述，说明；表明；认为，声称
n. 要说的话，意见

To say this is worthwhile.||It is worthwhile to say this.
这话值得说。

He popped in to say hello.
他匆匆进来说声你好。

As they say, honesty is the best policy.
常言道，诚实是最佳策略。

goose是什么意思：
n. 鹅；鹅肉；傻瓜

This is a sticky goo of pineapple and coconut.
这是菠萝和椰子调成的黏稠物。

I consider it's a goo man.
我认为这是一个感伤的人。

Silly as a goose
像鹅一样蠢