Engelmann's disease
[医] 骨干发育不全
🧩 词语组成解析
🗣️ 情景例句
I'd like you to meet the head of the student relations committee.
我想见见学生关系委员会主席。
It was a six-hour flight.
它要6小时的飞行。
It has been found that certain bats emit squeaks and by receiving the echoes,
人们发现，某些蝙蝠能发出尖叫声，