bitten v. 咬，叮

ocean n. 海洋；海量

pleasure n. 愉快；高兴

toil n. 辛苦；苦工 v. 费力地做；苦干

Once bitten， twice shy.

一朝被蛇咬，十年怕井绳。

Take things as they come.

既来之，则安之。

The frog in the well knows nothing of the great ocean.

坐井观天。

Pleasure comes through toil.

苦尽甘来。