例句與造句

1. Lenses in protective eyewear should be made of polycarbonate , which can withstand impact from a ball or other projectile traveling at up to 90 miles an hour
   護目鏡的鏡片必須是聚碳酸酯材料的。這種材料可以抵抗每小時90英里的球或者其他發(fā)射體。
2. It's difficult to find projectile travel in a sentence. 用projectile travel造句挺難的