The reaction conditions on oxidation of 2 - methylpyridine to 2 - acid by oxidation of potassium dichromate were studied.研究了以2-甲基吡啶为原料,以重铬酸钾为氧化剂,利用化学氧化法合成 2- 吡啶甲酸的反应条件....
Carrie found her purse bursting with good green bills of comfortable denominations.嘉莉发现自己的钱包里装满了面值可观的绿色钞票.The service was attended by Christians of all denominations.这次礼拜仪式各教派的基督徒都参加了.Liberal Christian denominations and ...
Anti-perspirants stop wetness, deodorants stop odour.抗汗剂防止汗湿，除臭剂去除臭味。Whatever his wetness, his brains were dry enough.不管他有多湿, 他心里却非常干枯.His solemn eyes were too bright . And down one cheek was a track of wetness.他那严肃的双眼异常...
The enraged crowd stoned the car, then set it on fire.愤怒的人群向那辆车扔石头，然后放火烧它。Youths burned cars and stoned police.年轻人烧汽车，并向警察扔石头。A post office was set on fire and vehicles were stoned by looters.抢劫犯放火烧了一家邮局，并用石头砸车。...
她在耐心等待,痴情地相信他会回到她身边.She's waiting patiently in the fond belief he'll come back to her.他对那位姑娘是一片痴情.He's infatuated with that girl.他迷恋着生物学老师, 但那只不过是孩子的一片痴情罢了.He's mad about his biology teacher, but it&#...