光

这盏灯光不够亮。

zhè zhǎn dēng guāng bù gòu liàng.

This light is not bright enough.

早上打开窗户，太阳光照了进来。

zǎo shàng dǎ kāi chuāng hù, tài yáng guāng zhào le jìn lái.

Open the window in the morning and the sun shines in.

学游泳光看是不行的，要练习。

xué yóu yǒng guāng kàn shì bù xíng de, yào liàn xí.

Learning to swim is not enough just by watching, you need to practice.

我们把西瓜吃光了。

wǒ men bǎ xī guā chī guāng le.

We ate all the watermelon.