如果你请的客人把家里弄得一团糟，那你就可以用这两个词：“他们太无所顾忌了，好像在自己家似的”。

Assuming you have just had guests who made a mess, these two words mean "they were as carefree as if they were in their own house."

youdao

如果你有什么问题，请随意问我好了。

If you have any questions at all, please feel free to ask me.

《柯林斯英汉双解大词典》

如果你还记得点儿什么请告诉我们。

If you remember anything at all, please let us know.

《牛津词典》

OK, important -- if you are part of this group here think about it and make sure you understand that.

好的，这很重要，如果刚才你选了可逆过程,请好好想想并且保证已经理解了这个问题。

麻省理工公开课 - 热力学与动力学课程节选

Please don't, if you are up here, become complacent because a month from now we will have another test.

如果你考得不错的话，请不要自满,因为在一个月后我们将还有一次测试。

麻省理工公开课 - 固态化学导论课程节选

Have the computational hygiene, if you like, to only go through accessors, only go through methods that are actually provided to you as you do this.

请大家注意计算卫生，如果你喜欢这么说的话，只通过访问器访问数据,当你访问数据的时候,通过提供给你的方法来访问。

麻省理工公开课 - 计算机科学及编程导论课程节选