adj. 必要的;強制的;必然的;不可避免的;
n. 必需品;
?? necess必要 + ary 表示有...性質的, → a.必要的;必然的
"Vitamin D is necessary to aid the absorption of calcium from food."
從食物中吸取鈣需靠維生素D的幫助。
近義:indispensable, inevitable, mandatory, needful, obligatory, obliged
反義:needless, pointless, profitless, purposeless, redundant, reiterative
adj. 最佳的,最優的;最理想的;
?? opt =bext,表示”最好, 期待, 愿望”
"Aim to do some physical activity three times a week for optimal health."
為了達到最佳的健康狀況,要力爭每周進行3次身體鍛煉。
近義:mint, optimum, best
反義:lousy, abysmal, punk, rotten, terrible, worse
n. 世界;地球;領域;塵世;
?? 一句(l)話(word)講出 世界的本質
"In a world that had suddenly become alien and dangerous, he was her only security."
在一個突然變得陌生而危險的世界里,他是她唯一的守護神。
近義:humanity, civilisation, civilization, orb, earth, globe