Echidnin
蝰蛇毒素
🗣️ 情景例句
I must prepare my lessons.
我必须准备工课。
I'm going by air.I like flying.
我将坐飞机去，我喜欢飞行。
It would be a waste of money to buy the IBM PC586.
买IBM586就浪费钱了。