moil

Here I am, toiling and moiling from morning till night for a few pennies.

看看我吧, 从早到晚为几文钱而辛辛苦苦地工作.

I shall have to toil and moil all my days.

我必须一年到头拼命地干.

They use their money earned by moil to buy or sell the stock whose price is changing every second.

他们以自己辛苦赚来的血汗钱，填满分分秒秒不时变动的各个价位。