Lang's tests
[医] 兰格氏试验(检牛磺酸)
🧩 词语组成解析
n. 测验（test的复数）
🗣️ 情景例句
The checkout counters are very busy.
收款台都很忙。
Who keeps company with the wolf will learn to howl.
近朱者赤，近墨者黑。
Tomorrow never comes.
莫依赖明天。