Although they clean the house all the time, they are still dissastified.

-> In spite of they clean the house all the time, they are still not satisfied

Dù lau nhà suốt nhưng họ vẫn không hài lòng.

->Mặc dù họ lau nhà suốt nhưng vẫn không hài lòng.

Although: Mặc dù.

In spite of: Mặc dù.

`=>` In spite of cleaning the house all the time, they are still disastisfied.

`+` In spite of/ Despite  + Ving/ N - Cùng S

`+` In spite of/ Despite + N - Khác S

`=` Although + Clause : Mặc dù .....