你能帮帮他们吗
精彩回答
Tomorrow is our teacher's birthday and we are going to give ________ a big surprise.
1年前
1年前
My biggest problem is that I’m too busy. When I was young, I ___ to have so much time
1年前
There _______ a maths book and two storybooks on the desk.
1年前
铁匠师傅在打造刀具时,主要经过三个过程:锻炼、打制、淬火,请解释一下这三个过程中分别是以什么方式改变了加工对象的内能.
1年前