卖力气

卖力气	mài lì qi	to make a living doing manual labor / to give sth all one's got
卖	mài	to sell / to betray / to spare no effort / to show off or flaunt
卖力	mài lì	to work hard / to do one's very best / to throw oneself into the task at hand
力	Lì	surname Li
力	lì	power / force / strength / ability / strenuously
力气	lì qi	physical strength
气	qì	gas; air / smell / weather / to make angry; to annoy; to get angry / vital energy; qi