it naturally limits all those engaged in carrying it out from effective contact
那些从事科研的人员自然受到了限制。他们不能进行有效的接触
新概念英语第四册
Lesson 15 Secrecy in industry
📚 句中词汇解析
从本句中提取的重要词汇
adv. 自然地，表现自然地，顺理成章地;合理地，当然，不用说;生来，天然地;自自然然，不做作地;
💡 natur=nature自然+ally副词后缀 →自然地
"His hair curls naturally."
他的头发天生鬈曲。
近义：certainly, artlessly, effortlessly
反义：likely, maybe, perchance, perhaps, plausibly, possibly
adj. 有效的;起作用的;实际的，实在的;给人深刻印象;
n. [军]现役兵额，有生力量，精兵;
💡 ef出+fect做，制作 +ive形容词后缀 →做出来的 → 有效的
"The police bandobast was very effective."
警方的安排十分奏效。
近义：curative, curing, helpful, assistive, operating, operative
反义：incapable, ineffective, ineffectual, inefficacious, inept, inexpert
n. 接触;触点;[医]（传染病）接触人;门路;
vt. 使接触;与…联系;与…通讯（或通话）;
vi. 联系，接触;
💡 con共同+tact接触→共同接触 → 接触；联系
"I don't have much contact with my uncle."
我和叔父甚少联系。
近义：reach, touch, nexus, relations, relationship, ties
engaged
[in'geidʒd]
adj. （指厕所等）有人用的;已订婚的;（指电话）占线的;忙碌的;
v. 与某人订婚;保证，约定;从事( engage的过去式和过去分词);吸引或引起（注意、兴趣等）;
"The old lady engaged herself in making clothes for her children."
这位老太太忙着为孩子们做衣服.
近义：betrothed, affianced, occupied, bound, obligated, pledged
反义：quit, unattached, uncaught, clear, disengaged, free