跨: to step across, to stride over, to straddle, to span...
卫生间: bathroom, toilet, WC...
浪: wave, breaker, unrestrained, dissipated, to stroll, to ramble...
启动: to start (a machine), to set in motion, to launch (an operation), to activate (a plan)...
友情: friendly feelings, friendship...
之内: inside, within...
应酬: social niceties, social interaction, a dinner party...
变迁: changes, vicissitudes...
自信: to have confidence in oneself, self-confidence...
本科: undergraduate course, undergraduate (attributive)...
