英语单词：biface

中文含义：双面工具

英语词性：noun

美式音标：ˈbaɪfəs

同义词：double-faced tool

易混淆单词：bias

双语例句：

1. This biface is made from flint stone and was used as a cutting tool by early humans.

这件双面工具是由燧石制成的，早期人类用它作为切割工具。

2. The biface had a wide range of uses, including cutting, slicing, and scraping.

这个双面工具有广泛的用途，包括切割、切片和刮擦。