腐らないようにしっかりと蓋を締めなさい。

to rot; to go bad; to decay; to spoil; to fester; to decompose; to turn sour (e.g. milk); to corrode; to weather; to crumble; to become useless; to blunt; to weaken (from lack of practice); to become depraved; to be degenerate; to be morally bankrupt; to be corrupt; to be depressed; to be dispirited; to feel discouraged; to feel down; indicates scorn or disdain for another's action; to lose a bet; to be drenched; to become sopping wet

in order to (e.g. meet goal); so that; take care (so as); hoping or wishing for something

tightly (holding on); firmly; securely; strongly (built); solidly; sturdily; steadily; properly; well; sufficiently; hard (working, etc.); fully; completely; reliably; dependably; levelheadedly; shrewdly; wisely; cleverly

if; when; and; with; particle used for quoting (with speech, thoughts, etc.); quoting particle; promoted pawn; indicates question (sentence end)

cover; lid; cap

indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.

to tie; to fasten; to total; to sum; to be strict with; to economize; to economise; to cut down on; to salt; to marinate; to pickle; to make sushi adding a mixture of vinegar and salt; to wear (necktie); to put on (necktie)

to do