Tom presently began to drift insensibly back into the concerns of this life again.

不久，汤姆又不知不觉地回到了现实生活中来。

youdao

But tree and bush are hardly that, since there is no way to define a tree versus a bush. The two categories grade insensibly into one another.

但树和灌木就是很难区分的，因为没有一种方法来区分一棵树和一株灌木，其中一种不知不觉地渐变为另一种。

youdao

Science is altering our life and arts insensibly at the same time.

科学改变着我们的生活，也在不知不觉地改变着我们的艺术。

youdao