📚 句中词汇解析
从本句中提取的重要词汇
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
adj. 紧密的;亲密的;亲近的;
vt. 关;结束;使靠近;
vi. 关;结束;关闭;
adv. 紧密地;
n. 结束;
💡 clud(shut)→关闭;结束;接近的;亲近的;准确的
"a close ally and friend of the prime minister"
首相的一个亲密盟友和伙伴
近义:lock, seal, shut, quadrate, tally, solemnize
反义:unclose, unlatch, unlock, unseal, unfold, induct
n. 合同;契约;协议;
💡 con共同+tract拉→共同拉回去→收缩;对大家都有制约→合同
"The offers for the contract were all in the same ballpark ."
本合同的所有开价均在同一范围内。
近义:narrow, retrench, shorten, shrink, straiten, compress
反义:broaden, sack, terminate, boot, discharge, cashier
vt. 避开,避免,预防;[法]使无效,撤销,废止;
💡 a=out处于+void空→empty out空出来→避开,避免
"Write clear definitions in order to avoid ambiguity."
释义要写清楚以免产生歧义。
近义:parry, avert, prevent, shirk, shun, sidestep
反义:approach, initiate, launch, start, tackle, wage
adj. 失去的;下落不明的;
v. 错过( miss的现在分词);
💡 miss 表示“丢失”\" + ing [名词后缀],构成抽象名词,表示行为、状态、情况及其他 → a.缺掉的,失去的
"The missing letter had been misfiled."
找不着的那封信放错地方了。
近义:absent, lost, astray, mislaid, stray, departed
反义:coexistent, contemporary, current, existent, left, leftover