“mǎi”和“mài”，哪个是买、哪个是卖？
mǎi vs mài — which is buy and which is sell?
全球翻车率（内测预估）
A四声买，三声卖
sì shēng mǎi，sān shēng mài · 4th tone = buy, 3rd tone = sell
B看语境
kàn yǔ jìng · depends on the context
✓三声买，四声卖
sān shēng mǎi，sì shēng mài · 3rd tone = buy, 4th tone = sell
D都是买
dōu shì mǎi · both mean to buy
三声进货，四声出货。声调搞反，做生意直接亏麻。
mǎi (third tone) = buy; mài (fourth tone) = sell. Together 买卖 (mǎimai) = business. Mix them up and your trading career ends early.