adj. 必要的;强制的;必然的;不可避免的;
n. 必需品;
💡 necess必要 + ary 表示有...性质的, → a.必要的;必然的
"Vitamin D is necessary to aid the absorption of calcium from food."
从食物中吸取钙需靠维生素D的帮助。
近义:indispensable, inevitable, mandatory, needful, obligatory, obliged
反义:needless, pointless, profitless, purposeless, redundant, reiterative
n. 经验,体验;经历,阅历;
vt. 亲身参与,亲身经历;感受;发现;
💡 ex出+per尝试+ience名词后缀→尝试出来的东西→经验
"Salary will be commensurate with experience."
薪金将会与资历相称。
近义:career, tradition, undergo, savvy, skill, expertise
反义:inexpertness, rawness, unskillfulness, callowness