He plays the piano tolerably (well).

他钢琴弹得还算不错。

《牛津词典》

Their captors treated them tolerably well.

俘获他们的人待他们勉强还过得去。

《柯林斯英汉双解大词典》

He was looking tolerably mellow.

他看上去还算平静。

youdao

Getting a system like ours to work tolerably well is a huge collective action problem.

FORBES: The Case Against The Case Against Voting

That's a drop in the telecom bucket but a tolerably profitable one.

FORBES: Down To Earth

Note, too, that in the past two years Russia had achieved a steady currency and tolerably low inflation (around 10% a year).

ECONOMIST: The price of an icon