Receding gums can be the result of disease or simply incorrect brushing.牙龈萎缩可能是疾病导致的，也可能仅仅是错误的刷牙方式引起的。Such a view rests on a number of incorrect assumptions.这样的观点建立在很多不正确的假设之上。Gershwin's lyrics would today probably ...
他最为人铭记的创举是率先采用流水装配线。He is best remembered for the introduction of the moving assembly-line.流水围绕大石流过去.A flowing stream inarms a boulder in its passing.流水哗哗地响.The water was gurgling....
He was a man of great charm and not inconsiderable wit.他是魅力十足、机智过人的男人。The production costs are a not inconsiderable £8 million.生产成本相当大，达800万英镑。The production costs are a not inconsiderable £8 million...生产成本相当大,达800万英镑。We...