To get a full appreciation of what this means we must turn first to some recent human inventions.
要透徹理解這句話的意義，我們應先回顧一下人類最近的幾項發明。
新概念英語第四冊
Lesson 7 Bats
?? 句中詞匯解析
從本句中提取的重要詞匯
n. 欣賞；鑒賞;感謝;評估;增值;
?? ap一再+preci價值+ation名詞后綴，表示行為 → 一再估價 → 評價，鑒賞，欣賞
"an aesthetic appreciation of the landscape"
用審美的眼光欣賞風景
近義：recognition, regard, acceptance, thankfulness, acknowledgement, acknowledgment
反義：thanklessness, ungratefulness, disloyalty, reduction, devaluation
adj. 最近的;新近的;近代的;[地]全新世的;
?? recent- “新的,新鮮的”
"Recent research has cast new light on the causes of the disease."
最新研究使人們進一步了解了這種疾病的起因.
近義：latest, modern, new, novel, unworn, young
反義：antiquated, antique, indigenous, archaic, longstanding, native
n. 人，人類;
adj. 人的;有人性的;顯示人類特有弱點的;人本性的;
?? hum土,地+an名詞后綴，屬于...的，傳說人是由土造出的 → 人類
"The teacher drew an analogy between the human heart and a pump."
老師打了個比喻，把人的心臟比作水泵。
近義：mortal
adj. 滿的，裝滿的;完全的，完整的;豐富的;詳盡的;
adv. 極其，十分;充分地，完全地;整整;直接地;
n. 充分，完全;全部;完整;極盛時;
v. 把衣服縫得寬大;把裙子縫出皺褶;[印]蒸洗，漂洗;
?? 因為fill（充滿）所以full(滿的）
"The streets were noisy and full of activity."
街上熙熙攘攘，車水馬龍。
近義：felt, abounding, laden, overcrowded, overstuffed, plump
反義：hollow, unladen, unoccupied, vacant, void
n. 方法（ mean的名詞復數）;手段;收入;財富;
v. 意味著（ mean的第三人稱單數）;引起;打算或注定要某人成為或做某事;
"The inquiry is by no means cut and dried."
調查之事遠未蓋棺定論。
近義：approach, manner, method, mode, process, strategy