| 单词 | potential source |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔bracket〕Experts have bracketed the two moons with Mars as a potential source of dangerous micro-organisms.专家们将这两个卫星与火星一起归入危险微生物的潜在来源。外研社新世纪〔heads up〕Used as a warning to watch out for a potential source of danger, as at a construction site.危险警告：如在建筑工地上用作警告以提醒注意潜在的危险源美国传统 |
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