Meaning of chā:
插
to insert; stick in; pierce; to take part in; to interfere; to interpose; old variant of 插[cha1]
Qǐng bǎ yàoshi chārù suǒ zhōng.
请把钥匙插入锁中。
Please insert the key into the lock.
Tā cóng wénjiànjiā lǐ bǎ zhǐ chā le jìnqù.
他从文件夹里把纸插了进去。
He stuck the paper into the folder.
Tā xiǎoxīn de chārù yàoshi.
他小心地插入钥匙。
He carefully inserted the key.
Lǎoshī yāoqǐng xuéshēng chā bān jiāoliú.
老师邀请学生插班交流。
The teacher invited the students to take part in the class exchange.
Qǐng bùyào suíyì chā huà.
请不要随意插话。
Please do not interrupt the conversation.
Lǎoshī zài jiǎng kè shí, wǒ rěnbùzhù xiǎng chā yī jù.
老师在讲课时，我忍不住想插一句。
While the teacher was lecturing, I couldn't help but want to interpose a comment.
Tā zài qiáng shàng chā le yī fú huà.
他在墙上插了一幅画。
He inserted a painting on the wall.
