Thumb sucking
[医] 吸拇癖, 吮拇癖
🧩 词语组成解析
thumb
[θʌm]
n. 拇指;（手套的）拇指部份;
vi. 翘起拇指请求搭乘（过路汽车），示意请求搭便车;翻阅;
vt. 翻阅;作搭车手势;用拇指翻脏[翻坏]（书页等）;
a. 吸奶的, 授乳的, 尚未断奶的, 乳臭未干的\\n[医] 吮, 吸; 吮的, 吮乳的
🗣️ 情景例句
I fell in love with him at first sight.
我对他一见钟情。
A journey of a thousand miles begains with a single step.
千里之行，始于足下。
Every day he does the same thing. Why doesn't he use the lift for the last three floors?
每天他都这样度过。为什么上最后3层楼他不用电梯呢？