a true and final test of success
成功的真实和最终测试 (chenggong de zhenshi he zuizhong ceshi)
"The real market will be the acid test for this invention."
"真正的市场将是此发明的酸性测试。" (zhenzheng de shichang jiang shi ci faming de **suanzhi ceshi**)
the moment when a change becomes unstoppable
to make something possible or likely to happen later
to start crying suddenly
to clear space to accommodate something
to be very frightened
to demolish or dismantle something
