0 to employ someone -- 雇用（某人）
She was taken on as a laboratory assistant. 她受雇为实验室助理。
1 to compete against or fight someone -- 同…较量（或争斗）
The government took on the unions and won. 政府同工会进行了一番较量后取得了胜利。
We can complete it step by step however long the road is and it can't be completed however short the road is if you don't even mark your footprint.
再长的路，一步步也能走完，再短的路，不迈开双脚也无法到达。
