Polyfluortetraethylene
聚四氟乙烯
🗣️ 情景例句
because he didn't want the responsibility of holding them.
因为他不想承担保管它们的责任。
Kind hearts are more than coronets.
善良的心灵胜于显贵的地位。
In 1898 a law was passed which meant that all people above a certain age were paid a weekly old-age pension.
1898年通过了一项法令，规定一定年龄以上的人全都可以按周领取"老年养老金。