身材瘦削而且训练艰苦的女运动员行经可能不那么频繁，或者根本不来月经。Lean hard-training women athletes may men-struate less frequently or not at all.妇女的平均月经周期是28天。The average length of a woman's menstrual cycle is 28 days.她于13岁开始有正常的月经,周期为28～32天,有轻度的...
Leukemias typically fill up the marrow with abnormal cells, displacing normal hematopoiesis.典型的白血病有很多不正常的细胞充满骨髓, 取代正常的造血功能.It replaces the polluted air by successively displacing it by fresh air.它用新风成功有效地替换了污浊的空气.Women p...
How does it deal with the denotative meaning and connotative meaning?又是怎么理解引申意和内涵意 呢 ?Conceptual meaning: the central part of meaning, which contains logical, cognitive, or denotative content.概念意义: 意义的中心部分, 包括逻辑的, 认知的, 或...