摘要:how to say in English Natural disasters or natural hazard or natural catastrophes, usually mean the natural phenomenon that can cause damage and harm for natural ecological environment, living enviro[阅读全文]

摘要:( something which is very natural for you to do ... ) Something you once learned to do which is now easy and comfortable to you is second nature. Example: "She started playing the piano when she was[阅读全文]