to think very hard about something
非常努力地思考某事 (fēi cháng nǔ lì de sī kǎo mǒu shì)
"I had to rack my brains to remember her name."
"我必须rack my brains来记住她的名字。" (Wǒ bìxū **rack my brains** lái jì zhù tā de míngzì.)
so surprised that you cannot speak
a call to take action, especially to defend a cause
to be eager to spend money quickly
to cause a sudden failure; to interrupt a process abruptly
the process of gradual improvement through experience and le...
from the most reliable source; directly from the person invo...
