Lacko洛科lackn.缺乏；无v.缺乏；不足lack of content空无内容lack proportion比例失调lack of systems制度缺失Lack of insight自知力缺如lackadaisicallyadv.萎靡不振地(无精打采地)lack of capital资金不足lack frustation缺乏挫折lack confidence缺乏信心Lack of feeling无情绪lack of honesty诚信缺失