A glass jaw is like, you hit it and it breaks like glass.

玻璃颚就像是， 你击中它，它就会像玻璃一样破碎。

Well, that might mean something if I had a glass jaw.

但我们仍能轻松打败那些不堪一击的对手。

If someone has a glass jaw, it means they're weak; easy to defeat.

如果某人有玻璃下巴， 则意味着他们很虚弱； 容易打败。

If a company has a glass jaw, it means it's easy to break them or beat them.

如果一家公司有玻璃颚， 就意味着很容易打破或击败它们。