🧩 词语组成解析
weed
[wid]
n. 杂草;大麻;废物;烟草;
vt. 给…除杂草;除（草）;消除;
vi. 除草;
🗣️ 情景例句
he'll be an important decision-maker
他将成为一个重要的决策者
What do you going to wear today?
你今天穿什么衣服？
Ethanol is more effective at a concentration of 50-70 percent;
乙醇的浓度为50％至70％时比较有效，