首相承诺以色列将发挥积极的作用。The Prime Minister has promised that Israel will play a constructive role.他相信盟友们会履行他们的承诺。He was confident the allies would make good on their pledges.达德利先生已承诺将任何所获的损害赔偿额都捐给慈善机构。Mr Dudley has pledged to gi...
It was prepared by the reaction of 12 H - dibenzo [ d , g ] [ 1,3 ] dioxocin - 6 - carboxylic acid with acetoxime.由二苯并-1,3-二氧杂 - 环辛烷 -2- 羧酸经两步反应制得, 总收率70%....