Was he walking? He just hung near the door without letting go. Maybe he was afraid he would become space garbage floating above the Earth if he let go.

他在太空行走吗？不，他仅仅挂在舱门边不敢离开。也许他害怕一旦松手就会立刻成为漂浮在地球外空的宇宙垃圾！

youdao

People send glowing lanterns into the sky while others let floating lanterns go in the sea, on rivers, or set them adrift in lakes.

有些人会向天空中放灯，也有人会将灯放到海、河、湖面上，任其漂浮。

youdao

Last thing to say is why would you want to have exceptions? Well, let's go back to that case of inputting a simple little floating point.

最后要讲的是为什么有异常处理？,回到输入一个简单的小浮点数的例子,如果我期望主要是。

麻省理工公开课 - 计算机科学及编程导论课程节选