1.the sum of 總和;總數(shù)
例句:The sum of all the angles of a triangle is 180 degrees.
三角形內(nèi)角總和為180度。
2.drug maker 制藥者
例句:The partnership includes United Nations agencies, the World Bank and leading drug makers.
這合作組織包括聯(lián)合國機(jī)構(gòu),世界銀行和知名制藥商。
3.live up to 達(dá)到了;實(shí)踐
例句:Sales have not lived up to expectations this year.
今年的銷售額不盡如人意。
4.test out 徹底檢查;考驗(yàn)
例句:I can't wait to test out that new mattress.
我已經(jīng)等不及試試我們的新床墊了。