小心那个花瓶，它非常易碎。

Be careful with that vase—it's very ___fragile.

危机过后，该国的经济仍然脆弱。

The nation's economy remains ___fragile in the aftermath of the crisis.

那片珊瑚礁形成了一个独特而脆弱的生态系统。

That coral reef forms a uniquely ___fragile ecosystem.