下海

下海	xià hǎi	to go out to sea / to enter the sea (to swim etc) / (fig.) to take the plunge (e.g. leave a secure job, or enter prostitution etc)
下	xià	down / downwards / below / lower / later / next (week etc) / second (of two parts) / to decline / to go down / to arrive at (a decision, conclusion etc) / measure word to show the frequency of an action
海	Hǎi	surname Hai
海	hǎi	ocean / sea / CL:个,片 / great number of people or things / (dialect) numerous