例句：

　　You can pay to be upgraded to a business class seat.

　　你可以付費升級到商務(wù)艙。

　　This is a country where women usually take a back seat.

　　在這個(gè)國家通常是男尊女卑。

　　She slipped into the driving seat and closed the door.

　　她溜進(jìn)了駕駛座，關(guān)上了門(mén)。