n. 材料,原料;素材;布,织物;适当人选;
adj. 物质的;肉体的;重要的,决定性的;辩证的,推论的;
🗣️ 情景例句
That's only part of it.
这只是一部分原因。
If you run after two hares,you will catch neither.
同时追两兔,一只也难捕。
it requires 97 per cent less energy to travel the quarter of a million miles from the Moon to Earth-orbit than the 200 mile-journey from Earth's surface into orbit!