Methods: The synthesis uses urea as material process includes condensation, opening loop, chloridization and nitrosation reaction. 方法以尿素为原料,经缩合, 开环, 氯化,亚硝化而得.
Pearson massaged his red-dened cheek.皮尔逊揉了揉自己泛红的脸颊。He massaged her back with scented oil.他用芳香油按摩她的背部.The script is massaged into final form.这篇稿子经过修改已定稿....
The agreement has raised hopes that the war may end soon.那项协议使人们感到战争有望很快结束。Rationing had put an end to a surfeit of biscuits long ago.定量供应很久以前就结束了饼干过剩的状况。He had wandered to the far end of the room.他转到屋子的那一头。...