名词
中文翻译：附加成本
同义词：
['extra cost', 'additional expense']
例句：
-
1.The hotel charges an extra 10% for the room rate.
酒店为房间价格额外收取10%。
-
2. The project requires an additional $50,000 in materials.
该项目需要额外的5万美元材料。
-
3.The company has added an additional employee to its team.
公司已将一名额外员工加入其团队。