环: ring, hoop, loop, (chain) link, classifier for scores in archery etc, to surround, to encircle, to hem in...
开关: power switch, gas valve, to open the city (or frontier) gate, to open and close, to switch on and off...
烧毁: to burn, to burn down...
上瘾: to get into a habit, to become addicted...
效率: efficiency...
看似: to look as if, to seem...
亏损: deficit, (financial) loss...
司长: bureau chief...
草坪: lawn...
主题: theme, subject...
