/tə ækt frʌm ˈmɜrsəˌnɛri/ – Phrase
Definition: hành động vì động cơ vụ lợi.
A more throughout explanation: To act from mercenary means to engage in actions or behavior motivated by a desire for financial gain or profit, often without regard for ethical considerations or principles.
Example: The soldier was accused of acting from mercenary motives when he accepted payment to betray his comrades.