英语词汇optional subjects怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	optional subjects
释义	optional subjects objectionableadj. 该反对的；讨厌的；有异议的 interjectionaladj. 叫声的；感叹词的
随便看	cargo oil tank cleaning system cargo oil tank gas pressure indicator cargo oil tank gaspressure indicator cargo oil tank heating system cargo oil tank pipe line cargo oil tank pipeline cargo oil tank stripping system cargo oil tank ventilating system cargo oil tank venting piping system cargo oil tank venting system cargo oil thermal oil heating system cargo oil transfer main pipe line cargo oil transfer system cargo oil valve cargo oil valve, cargo valve cargo oil valve control room cargo oil valve control system cargo oil valves control room cargo on board cargo on deck cargo on runners cargo on skids cargo operation cargoose cargo outturn message

英汉双解词典包含3607232条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。