当然安全。这里的空气非常干净。汤姆说。

'Yes, of course. The air is very clean here,' said Tom.

youdao

船舶在港口里当然安全，但船不是为停泊在港湾里而建造的。

A ship in port is safe, but that's not what ships are built for.

youdao

不用管要做什么事，也不用管开始时这些想法听上去多么的疯狂，只要确保你们从没有尝试过(当然安全第一)。

It does not matter what you do, just make sure that you haven't tried it before no matter how crazy the idea might seem at first (safety first of course).

youdao

The point I've got in mind here is this-- even when you think you're perfectly safe, you could of course die of a stroke.

我脑中所想的重点是-,即便是当你认为自己十分安全的时候，你当然也有可能死于中风。

耶鲁公开课 - 死亡课程节选

But I think this is rather an implausible suggestion because, of course, you could have these glorious views just by going up in the airplane and looking down from the safety of your airplane.

但我认为这是个似是而非的建议,因为，当然，你可能只是坐飞机向上飞,并安全地向下看,就会有这些迷人的视野。

耶鲁公开课 - 死亡课程节选