Polydialkysiloxane
聚二烷基硅氧烷
🗣️ 情景例句
He's poor.
他很穷。
The effect speaks, the tongue needs not.
事实胜于雄辩。
and the more difficult it is, the more highly it is regarded.
他们认为， 道路愈艰险愈带劲儿。