Lead trinitro-resorcinate
[化] 三硝基苯间二酚铅
🧩 词语组成解析
lead
[lid]
vt. 领导;引导;指挥;
vi. 领导;导致;用水砣测深;
n. 铅;领导;榜样;枪弹;
adj. 领头的;最重要的;领先的;
🗣️ 情景例句
I'm glad Mr. Marchetta was so helpful.
我真高兴 ，Marchetta先生如此帮忙。
He is in difficulty in his business.
他在事业上遇到困难了。
Nice to meet you too! What class are you in?
我也很高兴。你是哪班的？