Lecithine
[建] 卵磷脂
🗣️ 情景例句
No, I have to turn it in in the morning.
不行 ，明天上午我得交出去。
Knowledge advances by steps not by leaps.
知识的获得是循序渐进而不是突飞猛进的。
it takes much less energy to accelerate to that 1.5 miles per second than it does on Earth.
在月球上加速到每秒1。5英里比在地球上所用能源要少得多。