Superplasticizer
超增塑剂
🗣️ 情景例句
He appeared ill at ease at the party.
他在宴会上显得很拘谨。
Is that all he thinks about?
他想的事只是这些吗？
Let me take a look at your shoulder. Where does it hurt?
让我看看你的肩膀。哪里疼？