Retaining device
[医] 固位器
🧩 词语组成解析
n. 保留, 保持, 维持防护\\nv. 保持( retain的现在分词 ); 拦住; 保存; 止住
🗣️ 情景例句
What's the difference? No one will ever find out.
有什么两样？没有人会发现。
It's a matter of life and death.
事关生死。
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，