[chū mài]

It can sell high.
這能以高價出賣。

sell out [betray] the interests of the country
出賣國家的利益

betray one's friend
出賣朋友

barter away principles
出賣原則

barter away the sovereignty
出賣主權

We would rather die than sell out our comrades.
我們寧死也不出賣自己的同志。