Door-frames
(door-frame 的复数) 门框；鸡翅木
🧩 词语组成解析
door
[dɔr]
n. 门，户;出入口;一家[户];通道;
n. 帧, 画面；框架；眼镜架（frame的复数）
🗣️ 情景例句
Then think about the word in a sentence.
然后把这个词放到句子的环境中去。
I'm sorry to hear that.
听到这个消息我感到遗憾。
and by measuring the time interval between the taps and the receipt of the echoes, the depth of the sea at that point can be calculated.
测出回声间隔的时间，便可算出该处海洋的深度。