Stepstone
n. 楼梯石级
🗣️ 情景例句
78 percent of black high-school graduates are unemployed.
百分之四十八的黑人高中毕业生失业。
So many countries, so many customs.
一个国家有一个国家的风俗。
I still think we should buy the IBM PC586.
我仍然认为我们应该买IBM586的。