clench

详细解释:n. 牢牢抓住, 钉紧, 敲弯钉尖
vt. 紧握, 牢牢地抓住, 确定, 敲弯
vi. 握紧, 钉牢

词型变化：

动词过去式:clenched过去分词:clenched现在分词:clenching第三人称单数:clenches

英语解释：

名词 clench:

a small slip noose made with seizing同义词：clinch