Electroless
a. 无电镀的
🗣️ 情景例句
Weren't they going to be here this morning?
他们不是今天早上要来这儿吗？
He informed me of the event.
他通知我这件事。
It took years of hard work to speak good English.
讲一口流利的英语需要多年的刻苦操练。