Viscometric
测定粘度的
🗣️ 情景例句
He ventured his life to rescue a drowning child.
他冒着生命危险去抢救一个溺水的孩子。
Thank you.
谢谢你了。
Those first words were to change my world.
我最先学会的这些单词改变了我的生活天地。