As a general rule, snakes do not bite unless offended.
意思是作为一个冲盯稿常识，蛇不咬人，除非它被冒犯了。
重点词汇：
general 英[ˈdʒenrəl] 美[ˈdʒɛnərəl]
adj. 普遍的; 大致的; 综合的; 总的，全体的;
n. 一般; 常规; 上将; 一般原则;
[例句]The General's visit to Sarajevo is part of preparations for the deployment of extra troops.
将军造访萨拉热窝是在为增加兵力部署做准备。
bite 英[baɪt] 美[baɪt]
vt. 咬; 叮;
n. 咬; 咬伤; 疼痛; 受骗;
vi. 刺则搭痛; 咬饵; 有咬（或叮）的习性; （人） 上当;
[例句]Both sisters bit their nails as children.
两姐妹都像小孩儿一样咬指甲。
unless 英[ənˈles] 美[ʌnˈlɛs]
conj. 除非，如果不;
prep. 除了，…除外;
[例散孝句]Unless you are trying to lose weight to please yourself, it's going to be tough to keep your motivation level high.
除非减肥是为了悦已，否则很难保持积极性。
offend 英[əˈfend] 美[əˈfɛnd]
vt. 触怒; 得罪，冒犯; 使反感令人不适;
vi. 犯规，触犯;
[例句]He apologizes for his comments and says he had no intention of offending the community.
他为自己发表的评论道歉并称无意冒犯该社群。
