This new material is virtually unbreakable.这种新材料实际上是不碎的。This new product is rustproof, dustproof, and unbreakable.这种新产品防锈, 防尘并且摔不坏.The net is almost unbreakable.这张网几乎牢不可破.One unbreakable rule in our school is that no chi...
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....
Fluctuating prices usually base on a fickle public's demand.物价的波动往往是由于群众需求的不稳定而引起的.In many applications a fluctuating DC current is undesirable.在许多应用场合,波动的直流电是讨厌的.Widely fluctuating exchange rates may adversely affe...