Oxyfluoride
氟氧化物
🗣️ 情景例句
till you get to the end of the fence.
到栅栏的尽头。
Jenny is delighted with her poem.
珍妮为自己做的诗感到高兴。
No, we must stay here and find our lunch.
“不，我们必须留在这儿并找到我们的午饭！”