Gpc
[化] 凝胶渗透色谱法
🗣️ 情景例句
The policemen could not cope with the crowds.
警察不能对付群众。
Could you tell me where is the ticket office?
你能不能告诉我售票处在哪里？
Tianjin will be cloudy and the temperature will...
天津多云，气温……