Perls' test
[医] 珀耳斯氏试验(检含铁血黄素)
🧩 词语组成解析
🗣️ 情景例句
Are you all right?
你怎么了？
He hasn't done any worthwhile work in five years.
这五年来他没做过一件正经事。
It marked the end of the great tradition of ships with sails and the beginning of a new era.
它标志着帆船伟大传统的结束与一个新纪元的开始。