1.lose weight 減肥
例句:If you want to lose weight you should eat less bread.
如果你想減輕體重,你應該少吃面包
2.participate in 參加;參與
例句:No professionals participated in the contest.
沒有職業(yè)選手參加這一比賽
。3.work with 與...共事;起作用;利用
例句:For the sake of convenience we shall work with the space.
為了方便起見,我們將利用空間
。4.an average of 平均是;平均為
例句:An average of one new star is born in our galaxy each year.
平均每年在我們的星系中會誕生一顆新的恒星