当然所做事要合理合法喔。

Of course you have to have reasonable and legitimate.

他认为自己拖欠贷款是合理合法的。

He thought he had been right to default on that loan.

就公司提供物品所作的抵扣应合理合法。

Deductions for company provided items should be reasonable and legal.

从字面上理解，取名“有理数”可能是说，这类数的存在是合理合法的。

Literally, it seems possible to say that the existence of rational number is reasonable.