| 单词 | 第二天性 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔custom〕Custom is second nature.【谚】习惯是第二天性。文馨英汉〔second nature〕An acquired behavior or trait that is so long practiced as to seem innate.第二天性，习性：一种经过长久实践形成以致看起来象是天生的行为或特性美国传统〔second nature〕It was second nature for him to help his friends.帮助朋友是他的第二天性。外研社新世纪 |
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