| 单词 | 主因 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔AIR〕Cars are a major cause of air pollution. 汽车是引起空气污染的主因。朗文写作活用〔ground〕Anyone refusing to join had no defence against dismissal by the employer on that ground.任何拒绝参与的人都无法保护自己不被雇主因此开除。外研社新世纪〔multiplayer〕Internet multiplayer games are responsible for much of the increase in broadband use.网络多人游戏是宽带用户增多的主因。外研社新世纪The neurologist thinks that anxiety is the primary cause of your insomnia. 精神科医生认为，焦虑是你失眠的主因。译典通The ossification of the aorta is often the main cause for a stroke. 大动脉硬化是造成脑中风的主因。译典通 |
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