选港费选港附加费选择港费用选择卸货港所增运费charge: vt. 1.填;装(子弹);充(电);使饱和;使充满;堆 ...optional port charge: 选择卸货港费用optional fees or optional additional: 选择卸货港附加费mandatory or optional: 必选或可选的not compulsory optional: 非强迫的下载手机词典可随时随地查词查翻译