| 单词 | 外来物 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔defence mechanism〕Lymphocytes are part of the body's defence mechanism and reject anything foreign.淋巴细胞是身体防御机制的一部分, 排斥任何外来物质。外研社新世纪〔exotic〕Some native species are being crowded out by exotics.一些本土物种正受到外来物种的排挤。韦氏高阶〔find〕Many exotic species are found there.那里有很多外来物种。外研社新世纪〔pick〕To remove extraneous matter from (the teeth).剔除：从（牙上）剔除外来物质美国传统 |
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