供需 | gōng xū | supply and demand |
原理 | yuán lǐ | principle; theory |
哪 | nǎ | how; which |
na | (particle equivalent to 啊 after noun ending in -n) | |
něi | which? (interrogative, followed by classifier or numeral-classifier) | |
种 | zhǒng | seed; species; kind; type; classifier for types, kinds, sorts |
zhòng | to plant; to grow; to cultivate | |
快 | kuài | rapid; quick; speed; rate; soon; almost; to make haste; clever; sharp (of knives or wits); forthright; plainspoken; gratified; pleased; pleasant |