帆布靴子还可以，但它们不像皮革那样防水。

Canvas boots are all right but they're not as ___waterproof as leather.

去航海时别忘了带一件防水夹克。

Don't forget to bring a ___waterproof jacket when you go sailing.

我的新手表完全防水，所以我可以戴着它游泳。

My new watch is completely ___waterproof, so I can swim with it.