And most of the big ones will be ones that have broken off the ice shelves in this area.大多数大型冰山都是由附近的冰架断裂形成的

break off:折断(继绝, 突然中断)

A branch broke off the tree.

一根树枝折断了。

The door handle has broken off.

门的把手断了。

we should be able to see Wilkins Ice Shelf就能看见威尔金斯冰架

be able to:会, 能

A good lawyer might be able to get you off.

请位好律师有可能使你免受追究。

You'll be able to come, won't you?

你能来的，对吗?