B powder
[化] B火药
🧩 词语组成解析
powder
['paʊdɚ]
n. 粉，粉末;粉状物质;
vt. 在…搽粉;
vi. 涂粉，变成粉末;
🗣️ 情景例句
Yes. But could you wait one minute?
是的。不过， 你能等一下吗？
I tried to telephone you but I couldn't get through.
我试着打电话给你，但都没有打通。
Were there any letters for me this morning?
今天早上有我的信吗？