Work with your feet flat on the floor and your back against the chair.
工作时你的脚应该平放在地板上，而背部要靠在椅子上。
2
Since getting the flat, he’d refused to work. He even asked his parents to pay his utilities and his own son’s tuition fees.
因为得到公寓后，这个儿子就拒绝再去工作了，甚至他还要求他的父母来付物业费和他亲生儿子的辅导费。
3
You can also set up three-dimensional textures, using shapes instead of a flat image. Unfortunately, these do not currently work very well across different platforms.