Beryllonite
磷(酸)钠铍石
🗣️ 情景例句
Anything else?
还有其它的吗？
Do you often study history on Saturday?
你常常在星期六学历史吗？
Is it a black cat with one white ear and two white legs?
是那只长着一只白耳朵和两条白腿的黑猫吗？