Darcy
达西(多孔介质渗透力单位)
🗣️ 情景例句
I'm a little uncertain.
我有点犹豫不决。
I have come to make sure that your stay in Beijing is a pleasant one.
我特地为你们安排使你们在北京的逗留愉快。
I'm not sure. Maybe I'll give her some flowers. What about you?
我还不太肯定。也许我送她一些花儿。你呢？