那不是一個合適的話題。 Nà bú shì yī gè héshì de huàtí. That is not an appropriate topic.

Package for you; please sign for it.
您的包裹，請簽收。
Nín de bāoguǒ, qǐng qiānshōu.

This world is just an insane asylum.
The world is a den of crazies.
世界就是一個瘋子的囚籠。
shìjiè jiùshì yī ge fēngzi de qiú lóng.

她們正在灌唱片。
Tāmen zhèngzài guàn chàngpiàn.
They're recording a new album.

他們在拆信。
Tāmen zài chāixìn.
They're opening letters.

那不是一個合適的話題。
Nà bú shì yī gè héshì de huàtí.
That is not an appropriate topic.

別忘了一到倫敦就給我們留言啊。
bié wàng le yī dào Lúndūn jiù gěi wǒmen liúyán ā.
Be sure to drop us a line as soon as you get to London.

He runs really fast.
他跑得真快。
Tā pǎo de zhēn kuài.

My Chinese pronunciation isn't good.
我的中文發音不好。
Wǒ de Zhōngwén fāyīn bù hǎo.

周俊從事教師工作。
Zhōu Jùn cóngshì jiàoshī gōngzuò. (jiàoshī for occupation)
Zhou Jun has devoted herself to working as a teacher.

他一直很擔心他的女兒。
tā yīzhí hěn dānxīn tā de nǚér.
He continuously worries about his daughter.