医生让他把痰吐在杯子里以便检查。

The doctor asked him to collect his expectoration in a cup for examination.

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The doctor asked him to collect his expectoration in a cup for examination.

expectoration 是由前缀 ex-(表示"向外")和词根 pector(来自拉丁语 pectus,意为"胸部")加上名词后缀 -ation 构成。字面意思是"从胸部排出",医学上特指"咳痰"或"吐痰"的行为及其产物。

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