单词学习：flinch 动词 (Verb)
flinch
/flɪntʃ/
（因疼痛、恐惧或惊讶）退缩，畏缩
Even when faced with a difficult question, Mr. Gu did not flinch and answered calmly.
即使面对一个难题，顾老师也没有退缩，而是平静地回答了。
单词卡片
卡片已就绪
