firsthand knowledge的用法和樣例：
例句
- He has a wider and fresher firsthand knowledge of many things.
他具有許多事物的更廣泛和更新穎的第一手知識。 - The Antiquities Service allocated excavation permits and gave many Egyptology students firsthand knowledge of ancient Egypt.
文物管理處發(fā)放考古發(fā)掘許可證，使很多埃及學(xué)學(xué)生獲得了關(guān)于古代埃及的第一手知識。
