proof造句
He has had to eat his words about the company being recession-
proof.
他不得不收回他说过的公司能免受经济衰退影响的话。
His papers were
proof against all but the most expert of scrutinies.
他的论文几乎可以经受住最专业的审查。
His life was saved by a quarter-inch-thick bullet-
proof steel screen.
多亏一块1/4英寸厚的防弹钢板，他才捡了条命。