Work 2

Sorry to bother you!
You can use 麻烦 (máfan, to bother; annoying; tricky) as a verb meaning to bother someone.​
麻烦您了!
(Máfan nín le!​) Sorry to have bothered you!​
You can also use it as an adjective to say that someone is annoying, or that something is tricky.​
我们的老板很麻烦。
(Wǒmen de láobǎn hěn máfan.​) Our boss is annoying.​
这个工作很麻烦。
(Zhè ge gōngzuò hěn máfan.​) This job is tricky. ​
Which sound is that?
Usually 为 is pronounced with the fourth tone, but in 认为 , it uses the second.​
​为
​因为
(yīnwèi​) because​
认为
(rènwéi​) believe​
The character 差 also has a few different pronunciations!​
差
​差一刻
(chà yíkè​) a quarter to​
时差
(shíchā​) jet lag​
出差
(chūchāi​) business trip​