儿戏

1.You can now stop this kind of bored, naive playgame.

此无聊幼稚儿，可以休矣。

2.You shouldn't toy with great issues.

你不该拿重大问题当儿。

3.You can't play around with this assignment; it's something that needs to be buckled down to seriously.

的任务可不是儿, 需要认去干。