🧩 词语组成解析
combined
[[kəm'baind]]
a. 结合的；组合的
DNA
[,di:,en'ei]
abbr. did not attend 没有参加;does not answer 不回答;
index
['ɪndɛks]
n. 索引;<数>指数;指示;标志;
vt. 给…编索引;把…编入索引;[经济学]按生活指数调整（工资、价格等）;
vi. [机械学]转位;
in(in)+dex(proclaim)→指针；索引；指数；食指；指标
🗣️ 情景例句
You should have seen the look on his face
真该看看他脸上的表情
How many are there in your family?
在你的家庭有多少人？
How long have you lived there?
你在那里住多久了？