Keyhole specimen
[机] 锁孔试验片
🧩 词语组成解析
keyhole
[['ki:həul]]
n. 键孔, 栓孔, 锁眼\\na. 显示内情的
🗣️ 情景例句
Your grandfather went to the Engineering School there.
你爷爷进那个工学院。
Do you often learn geography on the weekend?
你常常在周末学地理吗？
At the age of eight, he joined a group of child dancers.
8岁时参加了儿童舞蹈团。