He couldn't help chuckling aloud.是什么意思？

He couldn't help chuckling aloud.

他忍不住的笑了出来.

he

pron. 他，它，一个人；n. 雄性动物；

例句
Logic had prevailed and he had abandoned the idea.
最终理智占了上风，他打消了那个念头。

help

vt.& vi. 帮助，有助于， 有利于；vt. 治疗，避免，招待（客人），给…盛（饭、菜）；n. 帮助，助手，补救办法，有用；vi. （在餐桌旁）招待，侍应，作仆人（或店员、服务员等）；int. [呼救语]救命！；

例句
It might help if campaigning didn't absorb so much time and money.
如果竞选活动没耗费这么多的时间和金钱，情况或许还不会这么糟。

chuckling

v. 轻声地笑( chuckle的现在分词 )；

例句
I could hear him chuckling to himself as he read his book.
他看书时,我能听见他的轻声发笑.

aloud

adv. 高声，大声；

例句
When we were children, our father read aloud to us...
我们小的时候，父亲会给我们朗读。