研究了偕二金属有机试剂3与氯化三烷基锡和碘的非对映选择性反应.The diastereoselective reactions of organogembismetallic reagent 3 with trialkyl tin chloride and iodine were studied....
Return the enclosed Donation Form today in the prepaid envelope provided.请于今日将随函附上的捐款表格用所提供的邮资预付的信封寄回。You can of course help by giving them a donation directly.你当然可以通过直接向他们捐款来帮助他们。to make a donation to charity向慈善事业捐赠...
If a state punishes a murderer by death it’s an eye for an eye.如果政府以死刑惩处凶手,这是以牙还牙。Love punishes when it forgives and injured beauty by its awful silence.爱情宽恕时便是惩罚,并用它可怕的沉默伤害了美.That justice with absolutely prevents a crim...