stay (keep) in touch (with sb)

(与某人)保持联系

statistic, statistical, statistically, statistician, statistics, statuary, statue, statuesque, statuette, stature, status, status quo, status symbol, statute, statute law, statute-book, statutory, staunch, stave, stay, stay away from, stay behind, stay for dinner, stay for/to sth, stay in, stay in touch, stay on, stay out, stay up, stay with sb, stay-at-home, stayer, staying-power, STD, stead, steadfast, steadfastly, steadfastness, steadily, steadiness,