必需品

Certainly; must; will; necessarily; definitely; surely; must; if; assuming; firm; resolute; surname.

To need or require something; a necessity or need; to wait; a fee or expense; the hexagram 'xu' in the Book of Changes.

Goods; product; commodity; article; grade; rank; kind; type; variety; character; disposition; temperament; to taste; to sample; to criticize; to judge.