我以为我的书包里有一把伞。

I thought I had an umbrella in my schoolbag.

确保你带了一把伞。

Make sure you bring an umbrella.

他带了一把伞以免下雨。

He took an umbrella lest it rain.

她总是随身携带一把伞。

She always carries an umbrella with her.

他带了一把伞，以防下雨。

He brought an umbrella in case it rained.

我带了一把伞因为可能会下雨。

I brought an umbrella cuz it might rain.

她携带了一把伞以防下雨。

She is carrying an umbrella in case it rains.

我忘记带一把伞，所以淋湿了。

I forgot to bring an umbrella, so I got wet.

你应该携带一把伞以防下雨。

You should carry an umbrella in case it rains.

外面下雨了，别忘了带一把伞。

It's raining outside, don't forget to take an umbrella.