New Words：

crayon [ˈkreɪən] 蜡笔
seek [siːk] 寻找
hide and seek 捉迷藏;藏猫猫
make sure 确保;尽力做到;深信

Sample Sentences：

He coloured the picture with crayon.
We often play "Hide and Seek" in PE class.
The children spent the whole afternoon together playing hide and seek.

I think I locked the door, but I'll just go back to make sure.
I think I should come with you to make sure that everything is OK.
Check your car before you drive to make sure that your lights are working.

check [tʃek] 检查;审查;核查;检验;查明;查看;核实

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