问题
问答题
当面不愿说的话，千万不要在背后说。
答案
参考答案：
解析：Never say anything behind a person’s back that you wouldn’t say to his face.
搜题请搜索小程序“爱下问搜题”
当面不愿说的话，千万不要在背后说。
参考答案：
解析：Never say anything behind a person’s back that you wouldn’t say to his face.
CO2 ↑
O2+ 2H2 
2Fe2O3 
SO2