Posner's tests
[医] 波斯讷氏试验(检尿白蛋白来源)
🧩 词语组成解析
n. 测验（test的复数）
🗣️ 情景例句
Nothing ventured, nothing gained.
不入虎穴，焉得虎子。
I told him to come in while waiting.
我告诉他进来等一下。
This clause will have to be changed.
这一条必须更改。