7 sentences

1. 我的自行车胎没气了。

   wǒ de zì​xíng​chē tāi méi qì le.

   My bicycle tire is flat.

   Source: Dong Chinese Dictionary

2. 这辆自行车的后胎泄气了。

   zhè liàng zì​xíng​chē de hòu tāi xiè​qì le.

   The rear tire of this bicycle is flat.

   Source: Dong Chinese Dictionary

3. 我的自行车胎没气了，需要打气。

   wǒ de zì​xíng​chē tāi méi qì le, xū​yào dǎ​qì.

   My bike tire is flat and needs to be pumped up.

   Source: Dong Chinese Dictionary

4. 这是我家的牛怀的第一胎。

   zhè shì wǒ jiā de niú huái de dì​yī tāi.

   This is my cow's first calf.

   Source: OpenSubtitles

5. 这只母猫第一胎生了三只小猫。

   zhè zhī mǔ māo dì​yī tāi shēng le sān zhī xiǎo māo.

   This mother cat had three kittens in her first litter.

   Source: Dong Chinese Dictionary

6. 这床棉胎非常暖和。

   zhè chuáng mián tāi fēi​cháng nuǎn​huo.

   This cotton wadding is very warm.

   Source: Dong Chinese Dictionary

7. 医生正在检查胎儿的发育情况。

   yī​shēng zhèng​zài jiǎn​chá tāi r de fā​yù qíng​kuàng.

   The doctor is checking the development of the fetus.

   Source: Dong Chinese Dictionary