单词学习：ache 名词/动词
ache
/eɪk/
（持续的）疼痛；渴望
Gu Laoshi felt a dull ache in his back after grading papers all day.
顾老师批改了一整天试卷后，感到背部隐隐作痛。
单词卡片
卡片已就绪
