C-s
[医]一种氧化铁制剂，静脉注射用于严重感染
🗣️ 情景例句
He knows everything about the production schedule,
他知道生产进度的一切情况，
Come and see me when you have time.
有空时请过来。
Would you be kind enough to sign our visitors book?
请在来宾簿上签名好吗？