Changing Times: With that self-schooling, they pioneered the use of the pop-up AD on mainstream websites.
风起云涌：经过一番自学磨练，他们率先在主流网站上推出弹出广告业务。
2
He had little formal schooling. His English was self-taught.
父亲没受过什么正规教育，他的英语是自学的。
3
Globally, there was an inverse association between years of schooling and self-rated poor health (odds ratio, or: 0.929; 95% confidence interval, ci: 0.926-0.933).