It's a bit of a challenge I suppose.

我想这有点挑战性。

youdao

Drawing the last part of the pit wall profiles was a bit of a challenge.

绘制坑墙轮廓的最后部分有一点挑战性。

youdao

Drawing the last part of the pit wall profiles was a bit of a challenge.

绘制坑墙轮廓的最后部分有一点挑战性。

youdao