單詞
stiffen
英 ['st?f(?)n]
美['st?fn]
基本信息
- vi. 變硬；變猛烈；變粘
- vt. 使變硬；使粘稠
CET4TEM4TOEFLCET6低頻詞擴(kuò)展詞匯
考試真題
- The advantages, not surprisingly, were greater for African Americans, who are more likely to develop high blood pressure than other ethnic groups, and for the elderly, since blood vessels stiffen with age, which can lead to higher blood pressure.
出自-2013年6月閱讀原文
stiffen相關(guān)單詞