be good for 表示“能……有好处(益处)”,此短语的反义词是“ be bad for (对……有害处)”。如: Running is good for your health. 跑步对你身体有好处。 Watching TV too much is bad for your eyes. 电视看得太多对你的眼睛有害。 三。 be good to be good to 表示...