lift me up是什么意思

　　The doctor said he should not lift heavy weights.

　　医生说他不能举重物。

　　The box is too heavy for me to lift.

　　这只箱子太沉，我搬不动。

　　I offered to give them a lift but they declined.

　　我主动邀请他们搭车，但他们婉言谢绝了。