to lose weight ☊ 
减肥 → ☊ like: giảm cân → →
abnehmen ☊ 
giảm cân, giảm sút ☊ 
减少 ☊ jiǎnshǎo abnehmen ☊ giảm cân, giảm sút ☊ ☊ I decided to go on a diet (= to lose weight) before my holiday. ☊ diet ☊
We'll need to reduce the weight by half. ☊ half ☊
The impact of the blow knocked ******** balance. ☊ impact ☊
I've limited myself to 1 000 calories a day to try and lose weight. ☊ limit ☊
weight loss ☊ loss ☊
This diet is suited to anyone who wants to lose weight fast. ☊ suited ☊
We laughed and that helped ease the tension. ☊ tension ☊
She is trying to lose weight (= become less heavy and less fat). ☊ weight ☊