There are three types of "formed" elements: the red blood cells, leucocytes, and the thrombocytes.

有形成分有三种：红血细胞、白血细胞和血小板。

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There are three types of "formed" elements: the red blood cells, leucocytes, and the thrombocytes.

有形成分有三种：红血细胞、白血细胞和血小板。

youdao