(1) She tore open the envelope, ignoring the paper knife Penman laid ready for her each day.

(2) The blade of the paper knife of the utility model is convenient to change.

(3) The paper knife with infrared display has the advantages that the position of the paper knife is displayed, so files or photos can not be cut slantways in cutting.

(4) Trolleys, nutcracker, bottle opener, paper knife is such a lever.

(5) While we sluice, the manager played with a carved paper knife.

(6) The safety screw is one of the most important parts of the paper knife.

(7) Don't you remember we once ate potted shrimps with a paper knife?