penknives

基本解释

This is tentatively backed up by the Youth Justice Board, which reckons a third of those aged between 11 and 16 occasionally carry a knife (though most are penknives).
青年司法会（YouthJusticeBoard）审慎地支持了这一观点，认为11至16岁之间的年轻人有三分之一不时会随身携带刀具（虽然其中多数是小摺刀）。
In the window there were trays of nuts and bolts, worn-out chisels, penknives with broken blades, tarnished watches that did not even pretend to be in going order, and other miscellaneous rubbish.
橱窗里放着一盘盘螺母螺钉、旧凿子、破扦刀、一眼望去就知道已经停了不走的旧手表，还有许许多多没用的废品。
and they still go on delicately ripping out sleeves and collars with their little penknives,
裁缝们却小心翼翼地用小折刀扯出做袖子和领子的布，