例句：Andy sharpened the edge of his knife on a grindstone.
安迪在磨石上磨快了他的刀刃。
hedge n. 樹(shù)籬，障礙物
例句：Will the hedge keep the sheep out of the field?
這籬笆能將羊群擋在田地外面嗎?
pledge n.保證，譬言，抵押，抵押品vt.保證，抵押，典當(dāng)
例句：Take this ring as a pledge of our love.
請(qǐng)接受這個(gè)戒指作為我們愛(ài)情的誓言。
wedge n.楔vt.楔人，楔進(jìn)
例句：Brant had a banana and a wedge of cheese for lunch.
布蘭特中飯吃了一根香蕉和一塊楔形的奶酪。
badge n.徽章，證章
例句：Charles was awarded a merit badge for his bravery in the battle.
查爾斯因?yàn)樵趹?zhàn)斗中的勇猛被授予一枚獎(jiǎng)?wù)隆?/p>
