to speak or perform without preparation
没有准备的讲话或表演 (meiyou zhunbei de jianghua huo biaoyan)
"He gave an off the cuff remark that impressed everyone."
"他发表了一个即兴的评论，给大家留下了深刻印象。" (Ta fabiao le yige jixing de pinglun, gei dàjiā liúxià le shēnkè yìnxiàng.)
To go bankrupt or out of business.
to be exceptionally good at one’s work
Something that is easy and without difficulty.
too surprising or shocking to believe
a very low-priced, high-risk stock
to break someone's confidence in you
