Floristics is the study of floras, including the preparation of Floras.植物区系学是研究植物区系的一门学科, 其中包括编写植物志.We shall appreciate this difficulty more clearly, by looking to certain existing faunas and floras.通过观察某些现存的动物群和植物群,我们就能...
这所学校是专门为那些因患病而导致学业中断的孩子们开办的。The school is specially for children whose schooling has been disrupted by illness.我哥哥常因患病而缺勤.My brother is often absent from work because of illness....