The group had a net profit margin of 30% last year.去年，这个集团的纯利润率为30%。There was a net outflow of about £50m in short-term capital.短期资金净流出额大约为5,000万英镑。I threw aside my mosquito net and jumped out of bed.我把蚊帐甩到一边，跳下床来。...
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.Floristics is the study of floras, including the preparation of Floras.植物志是描述某一特定地区植物区系的书或其他著作.A flora is a book or other work describing the flora of a given area.把纲要放在订正或植物志前面作为内容摘要.Synopse...