extrasin

例句：

1. 1. The hotel charges anextra fee for parking.
   酒店为停车收取额外费用。
2. 2. The flight ticket includes an extracharge for the first-class seat.
   机票包括了头等舱座位的额外费用。
3. 3. The restaurant added an extra charge forthe dessert menu.
   餐厅在甜点菜单上增加了额外费用。