Don't go too far 不要走得太远了；不要太过分了
You have crossed the line.
Don't overdo it.
例句：
Don't go too far,the train will arrive before long.
不要走远了，火车不久就要进站了。
Watch your mouth,don't go too far.
注意你的言辞，不要太过分了。
A:Would you be my girlfriend?
你能做我女朋友吗？
B:Don't go too far.
不要太过分了。