But when does " social drinking" become problem drinking?

那么“社交饮酒”何时成为酗酒了呢？

All these situations are considered " social drinking" because they happen at social events.

所有这些场景都发生在社交场合，所以被视为是“社交饮酒”。

I found the idea of social drinking ludicrous—if you didn't want to get drunk, why not just have a Coke?

我觉得所谓社交性饮酒是个很滑稽的说法——如果你不想一醉方休，干吗不要杯可乐呢？