1. 苦味：bitterend || 顽固的 | bittering || 苦味 | bitterish || 稍苦的, 带苦味的
2. 苦味,加入苦味：苦味 bitter taste | 苦味,加入苦味 bittering | 苦卤,盐卤 bittern
1. I have no idea who brought it here, but grandpa did not have a habit of drinking coffee, for he felt the bittering taste had no way to compete with the faint scent of tea.
不知是谁送来的，爷爷却是没有喝咖啡的习惯，在他眼中咖啡苦苦的滋味是怎么也比不了他手中那壶茶的清香。
2. Study on the bittering of chicken protein by the enzymatic hydrolysis
酶法水解鸡肉蛋白及其水解液脱苦方法的研究