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
How much do stamps cost?
邮票多少钱？
Their chances of winning are slim.
他们取胜的机会很渺茫。
The clouds had come down so suddenly we had no warning.
乌云突然出现，我们丝毫没有觉察。