Not only are mothers not paid but also most of their boring or difficult work is unnoticed.母亲们不但得不到报酬，而且她们做的那些乏味艰苦的工作常常都不为人所注意。His resignation passed almost unnoticed amid the furor of the elections.在轰轰烈烈的大选中，他的辞职几乎无人关注。...
I tried to slip up the stairs unnoticed.我试图趁没人注意溜上楼去。His kindness did not go unnoticed by his staff.他的厚道员工了然于心。She scorns the visible trappings of success, preferring to live unnoticed.她鄙视标志成功的外在之物, 更愿意默默无闻地生活....
Don't be too downhearted. There's always a way.别太悲观了，总有办法的。Max sighed, sounding even more downhearted.马克斯叹了口气，听上去更沮丧了。We're disappointed by these results but we're not downhearted.我们对结果感到失望，但是并未丧失信心。T...
Edward VIII had done the unthinkable and abdicated the throne.爱德华八世竟主动逊位，真是匪夷所思。He renounced his claim to the French throne.他正式放弃对法国王位的继承权。the accession of Queen Victoria to the throne维多利亚女王即位...
In some solvents, these compounds from particles of collodial size because of polyaggregation.由于多聚集作用, 这些化合物在某些溶剂中形成胶体的粒度.It is resistant to borohydride reduction in alcoholic solvents.在醇溶剂中,它不能被硼氢化物还原.The method was est...