出门别忘了带伞，下午可能会下雨。

Chūmén bié wàng le dài sǎn, xiàwǔ kěnéng huì xiàyǔ.

Don't forget to bring an umbrella when you go out; it might rain this afternoon.

我的伞忘在出租车上了。

Wǒ de sǎn wàng zài chūzūchē shàng le.

I left my umbrella in the taxi.

这把伞是新买的，颜色很好看。

Zhè bǎ sǎn shì xīn mǎi de, yánsè hěn hǎokàn.

This umbrella is newly bought, and the color is very nice.