Schalfnerite
铜钒铅锌矿
🗣️ 情景例句
He married a classmate from high school.
他与高中时代的同班同学结婚。
Speaking without thinking is shooting without taking aim.
讲话不思考犹如射击不对准目标。
Jim, could you help me, please? I want to get some books.
吉姆，你能帮我一下吗？我想拿些书。