| 单词 | 并乐于助人 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔BEHAVE〕The waiter was really friendly and helpful. 这侍者非常友善并乐于助人。朗文写作活用〔cooperative〕Jean is cooperative and helpful in the classroom.琼在班上富于合作精神，并乐于助人。麦克米伦高阶〔unfailing〕Staff were unfailingly friendly and helpful.全体职员一贯都很和善并乐于助人。麦克米伦高阶 |
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