shear of lines of forces

例句：

1. 1. Sheared the sheep to make it fit for market.
   她剪羊毛以使其适合市场。
2. 2. The shears are sharp enough to cut through even the thickest fabric.
   剪刀足够锋利，可以剪破最厚的布料。
3. 3. The shears were so sharp that they could easily cut through even the toughest leather.
   剪刀非常锋利，可以轻松剪破最坚韧的皮革。