彼女は楽々とこのトリックをやってのけた。

tbd

She performed this trick with ease.

彼はそれをひとりで、しかも見事にやってのけた。

tbd

He did it by himself, and admirably.

彼はその難しい行為をごく簡単にやって退けた。

tbd

He brought off the difficult act quite easily.

君は見事にやってのけた。

tbd

You did an excellent job.

やっぱり何とかやってのけたね。

tbd

You managed it after all.

なるほどその計画は難しい仕事だが、原さんならやってのけるだろう。

tbd

It's true that the project is a difficult task, but Mr Hara will be able to bring it off.

うまくいくとは思いもしなかったが、どういうわけかなんとかうまくやってのけられた。

tbd

I didn't expect to succeed, but somehow I managed to carry it off.

I never thought it would work, but somehow I managed to pull it off.