缺: Ⅰ动词1.(缺乏; 短少) be short of; lack 短语和例子缺吃缺穿 have insufficient food and clothing; 缺人手 be short of hands; 什么也不缺。 nothing is lacking. 他们不缺资金。 they do not lack for funds. 这花儿缺水。 the flowers need
缺氮: minus nitrogennitrogen deficiencynitrogen hungernitrogen stress
