想起他那惊讶的表情，她就轻轻地暗自发笑。用英语怎么说？

想起他那惊讶的表情，她就轻轻地暗自发笑。

She chuckled softly to herself as she remembered his astonished look.

she

pron. 她，它；

例句
Her lover walked out on her after she had aborted their child.
她的情人在她打掉胎儿后甩了她。

chuckled

v. 轻声地笑( chuckle的过去式和过去分词 )；

例句
'You look in a bad way,' chuckled Brad.
“你看起来糟透了，”布拉德笑着说。

softly

adv. 柔软地，静静地，温和地，柔和地；

例句
The night lantern glowed softly in the darkness...
晚上点亮的灯笼在黑暗中发出柔和的光。

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

herself

pron. （反身代词）她自己，（用以加强语气）她亲自，她本人；

例句
She was old enough to absent herself from the lunch table if she chose...
她长大了，可以自己做主不来吃午餐了。

as

adv. 同样地，一样地，例如；prep. 作为，以…的身份，如

例句
As far as I can recall, Patti was a Smith.
我记得帕蒂是姓史密斯的。

remembered

v. 记得，牢记( remember的过去式和过去分词 )，纪念，记着，回想起；

例句
I remembered a huddle of stone buildings with blind walls.
我记得一片没有窗户的石头建筑。

his

pron. (he的所有格)他的，(he的物主代词)他的东西；det. 属于他的，用于名词前，自己的，指某人的，上帝的；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

astonished

v. 使惊讶，使大为吃惊(astonish的过去式和过去分词)；adj. 吃惊的；

例句
Chris acted astonished as he examined the note...
克里斯检查记录时故作震惊状。

look

vt.& vi. 看，瞧；vi. 注意，面向，寻找，看起来好像；n. 看，（尤指吸引人的）相貌，眼神，样子；int. （插话或唤起注意）喂，听我说；

例句
The same abstracted look was still on his face.
他仍是一脸恍惚。