She accomplished the arduous task involuntarily.

她不情不愿地完成了这项艰巨的任务。

She recollected the past involuntarily.

她不由自主地回想起了往事。

He involuntarily signed up for a college he didn't want to go.

他违背意愿地报了自己不想去的大学。

He cried involuntarily, as he looked at East Gate, which, in those days, was at the end of East Street.

他望着东门不由自主地叫了起来，那时候东门就在东街的尽头。

His thoughts were so elastic, his heart so tender; and involuntarily he picked one of the nearest flowers.

他的思维真跳跃，他的心真温柔；他不由自主地摘了一朵最近的花。

His left eyelid twitched involuntarily.

他的左眼皮不由自主地跳着。

Even I also involuntarily went in.

连我也不由自主地走了进去。

They ignore too many things involuntarily.

无意中他们忽视了太多东西。