 
<translate> A na-aṅụ ya site n'ọnụ. Ọnụ bụ akụkụ ahụ. Ọ bụrụ na ị na-aṅụ ihe ọṅụṅụ na-aba n'anya ọnụ bụ akụkụ ahụ nke na-arụ ọrụ nke ukwuu. Azịza ya bụ: ọnụ. <eng> Drinking is done by mouth. Mouth is body part. If you are drinking mouth is the body part that work most.
The answer: mouth. 