n.浮渣，泡沫，糟粕vi.产生泡沫，被浮渣覆盖vt.将浮渣去除掉...

cirrocumulus的复数形式为：cirrocumuli...

You were right to do what you did, under the circumstances.在这种情况下，你做的是对的。Under the circumstances, a crash was unavoidable.在那种情况下，撞车是难以避免的。Under the circumstances I feel it right that you should know.在目前情况下,我觉得让你们知道是对的....

When they are on holiday the work of doctors is often done by locums.医生度假时,他们的工作常由代理医生负责....

v.浮渣( scum的第三人称单数 )，卑鄙的人，人渣，社会渣滓...

under no circumstances的音标：...