Gumshield
（运动员所含的）护齿
🗣️ 情景例句
when Susan and Richard were babies?
当Richard和Susan还很小时？
Where there is a will,, there is a way(or skill).
有决心，就有办法。
who put his questions to nature instead of to the ancients,
他向自然界而不是向古人提出问题，