

Über diesen Witz muss ich lachen.
[ˈyːbɐ ˈdiːzn̩ ˈvɪts ˈmʊs ˈɪç ˈlaxn̩.]
That joke makes me laugh.
Du darfst nicht so laut lachen.
[ˈduː ˈdarfst ˈnɪçt ˈzoː ˈlaʊ̯t ˈlaxn̩.]
You mustn't laugh so loudly.
Warum musst du immer lachen?
[vaˈrʊm ˈmʊst ˈduː ˈɪmɐ ˈlaxn̩?]
Why do you always have to laugh?
"lachen" is in the lesson "Verb antonyms" (Level 8), along with 15 other useful words. LinDuo has 180 topic lessons like this one, 2,375 words in total. Every word has an illustration, a transcription and pronunciation in a female and a male voice. Just 10–15 minutes a day is enough to learn them all. Free, and works offline.