Stock markets in Asia have followed the downward trend set by Wall Street as fears mountover the state of the ailing global economy.
由于投资者对全球经济状况恶化的担心，亚洲股市继续步华尔街后尘下滑。
2
I'll mount guard over the luggage while you get the ticket.
你去买票，我来看管行李。
《新英汉大辞典》
3
When you mount a filesystem over an existing directory, the files on the filesystem you are mounting become the files and subdirectories of the mount point.