Upcharge
n. 附加费用，额外费用
🗣️ 情景例句
This weekend I'm going to install a home security system.
这个周末我要装一套家庭保安系统。
He keeps on studying ecology.
他不断攻读生态学。
I even went out at midnight with a torch and noted with satisfaction (and surprise) that the ants were still swarming around the sticky tape without being able to do anything about it.
半夜，我还拿着电筒来到花园里，满意地（同时惊奇地）发现那些蚂蚁还围着胶带团团转。无能为力。