A consumer shall strive to master all of the necessary information and the ability to use a commodity or service, shall use commodities properly and shall increase awareness of self protection.是什么意思_A consumer shall strive to master all of the necessary information and the ability to use a commodity or service, shall use commodities properly and shall increase awareness of self protection.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句