Wolframate
钨酸盐
🗣️ 情景例句
Richard and I will put them into the envelopes.
我和Richard把它们放进信封。
Hurray!
万岁！
What are you doing? he asked. I'm cutting this tree up, answered the woodcutter.
“你在做什么？”他问。“我在把这棵树砍断，”伐木工人回答道。