“升级”造句

你可以付费升级到商务舱。
You can pay to be upgraded to a business class seat.

有报道称萨尔瓦多的战斗已经升级。
There are reports of stepped-up fighting in El Salvador.

您可以将自理膳食旅店升级为酒店。
You can upgrade from self-catering accommodation to a hotel.

• #升级