例句與造句

1. This means that some air is lost while attaching and detaching pumps to Schrader valves, although this is usually minimal ( most of the air which makes the " whooshing " noise when the pump is removed comes from the compressed air in the tube between the pump body and the attachment end, not the tire via the momentarily-open Schrader valve ).
2. It's difficult to find attachment end in a sentence. 用attachment end造句挺難的