mǎi mài
buying and selling
business
business transactions
CL:樁|桩[zhuang1],次[ci4]
zuò mǎi mài
to buy and sell
to do business
to trade
to deal
tóu jī mǎi mài
buying and selling on speculation
yī chuí zi mǎi mài
lit. fly-by-night one-off business deal
fig. to act recklessly, throwing all caution to the wind
Zhèng quàn Guì tái Mǎi mài Zhōng xīn
GreTai Securities Market (GTSM)