cruster造句

• The cat practices the piano, Delores De-cruster cuts the crust off Walter's bread.
• Therefore, I imagine that the younger oceanic crust, which comes from the Mid-Atlantic Ridge, subducts under the older continental cruster ( otherwhise, I guess there wouldn't be any old continental crust ).
• I'm curious about that statement : " I imagine that the younger oceanic crust, which comes from the Mid-Atlantic Ridge, subducts under the older continental cruster ( otherwhise, I guess there wouldn't be any old continental crust ) . " I don't understand your logic.