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
Your buildings are very large, aren't they?
你们的厂房很大，对吗？
He gave her his word that he would never be late again.
他向她保证，绝不再迟到。
and mechanical systems like a wound watch, or the sun,
像上紧发条的手表那样的机械装置，或太阳，