座席ベルトをおしめください。

seat

belt (waist, seat, etc.); strap; belt; zone; area; drive belt; machine belt

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 be frugal; to be sparing; to value; to hold dear; to regret (e.g. a loss); to feel sorry (for); to be unwilling; to be reluctant

to give; to confer; to bestow; to kindly do for one; to oblige; to favour; to favor