步入: to step into, to enter...
怠工: to slacken off in one's work, to go slow (as a form of strike)...
宇宙: universe, cosmos...
常见: commonly seen, common, to see sth frequently...
轮: round, turn...
适宜: suitable, appropriate...
穷: poor, destitute, to use up, to exhaust, thoroughly, extremely, (coll.) persistently and pointlessly...
