We worked on pronunciation, stress and intonation.
我們學習了語音、重讀和語調。
You need to work on your pronunciation a bit more.
你需要再加把勁改進發音。
With these students it's pronunciation that's the problem.
對這些學生來說，成問題的是發音。
Its pronunciation is easy.
它的發音很簡單。
His pronunciation is simply terrible.
他的發音簡直壞透了。