Sometimes the secrecy goes to such an extent that the whole nature of the research cannot be mentioned.
有时，保密竟达到了这样的程度，即连研究工作的整个性质都不准提及。
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. 有时，间或;时而;
💡 sometime某一时间的+s表副词 →有时
"Even friends disagree sometimes."
即便是朋友有时也有分歧。
近义：occasionally, oft, once, rarely, betweentimes, betweenwhiles
反义：invariably, periodically, repeatedly, steadily, usually, consistently
n. 程度;长度;广大地域;扣押;
💡 ex出+tent伸展；扩大→伸出去的范围 → 范围；程度
"It is difficult to assess the full extent of the damage."
损失情况难以全面估计。
近义：largeness, magnitude, size, bigness, limits, outreach
n. 自然;天性;天理;类型;
💡 nat出生的+ure状态→出生状态→天性
"the adversarial nature of the two-party system"
两党制的对抗性
近义：milieu, surroundings, circumambiency, medium, ecosystem, environment
n. 研究，追究;探讨，探测;调查;探索;
vi. 做研究;探究;（从市场调研中）得出所预测的结果;
vt. 从事…的研究，为…而做研究;
💡 re(again)+search(to go round)→研究；调查
"Recent research has cast new light on the causes of the disease."
最新研究使人们进一步了解了这种疾病的起因.
近义：inquire, investigate, ask, probe, sleuth, study
n. 保密;保密能力;秘密（状态）;守秘密;
"the need for absolute secrecy in this matter"
在这件事情上绝对保密的必要性
近义：secret, stealthfulness, stealthness, obscurity, privacy, reconditeness
反义：homeliness, honesty, naivete, openheartedness, openness, outrightness