谁帮做三道汉译英题!1.这个等式是以爱因斯坦提出的相对论为基础的.(base … on)2.他所提的改进意见对我们很有价

1.This equation is based on the theory of relativity proposed by Einstein.
2.His suggestion on the improvement carries weight with us.
3.When setting feet on the motherland again after 30 years' departing,this overseas Chinese was very excited.

1. This is the equation proposed by Einstein's theory of relativity-based. (base ... on) 2. he made improvements to our very valuable. (carry weight with) 3. The overseas Chinese to leave the motherland 30 years after the re-excited when they set foot on their homeland.