中专生 zhōng zhuān shēng short for 中等专科学院学生 secondary specialized school students,
板凳 bǎn dèng wooden bench or stool
替补 tì bǔ substitute (i.e., in the football match)
锄头  chú tou pickaxe
一贫如洗 yì pín rú xǐ penniless, (so poor as if has been washed)
三轮 sān lún pedicab
目睹 mù dǔ see with one's own eyes
抹布 mā bù rag (to wipe things with)
招聘 zhāo pìn to advertise a job vacancy or to take on applicants of a job vacancy
社会分工 shè huì fēn gōng division of labor in society
门槛 mén kǎn threshold
人满为患 rén mǎn wéi huàn overcrowded with people
万马齐喑 wàn mǎ qí yīn

喑-to be dumb

ten thousand horses standing mute

转轨 zhuǎn guǐ to be in transition (changing the track)
优胜劣汰 yōu shèng liè tài

汰-淘汰 to eliminate

survival for the fittest

荒谬 huāng miù absurd
供需 gōng xū supply and demand
过剩 guò shèng excess, surplus, redundant