Historians have long been puzzled by dots, lines and symbols which have been engraved on walls, bones, and the ivory tusks of mammoths.
长期以来，历史学家一直对雕刻在墙壁上、骨头上、古代长毛象的象牙上的点、线和形形色色的符号感到困惑不解。
新概念英语第三册 Lesson 38 The first calender

📚 句中词汇解析

从本句中提取的重要词汇

long [lɔŋ] 词频1 词根: /lə/
adj. 长的;长时间的;冗长的，过长的;长音的; adv. 长久地;始终;遥远地; n. 长时间，长时期;[语]长音节;（服装的）长尺寸;长裤; vi. 渴望，极想;
💡 渴望见到很 长的龙（long） 长龙（拼音long)摆尾 网友：顾亮亮 补充：龙很长
"How long will I be under the anaesthetic ?"
我会麻醉多长时间？
近义：lengthened, lengthy, moderately, pretty, quite, rather 反义：little, minute, small, squat, slight
ivory ['aɪvəri] 词频3
n. 象牙;象牙制品;象牙色;象牙质; adj. 象牙制的;象牙色的;
"a ban on the ivory trade"
象牙贸易禁令
近义：ebur
puzzled [pʌzld]
adj. 困惑的，糊涂的，茫然的; v. ( puzzle的过去式)使迷惑，使难解; n. 谜，难题;
"His total disinterest in money puzzled his family."
他对金钱毫无兴趣使他的家人感到迷惑不解。
近义：astonished, astounded, nonplused, nonplussed, perplexed, baffled
engraved [[in'greivd]]
v. 在（硬物）上雕刻（字, 画等）( engrave的过去式和过去分词 ); 将某事物深深印在（记忆或头脑中）
近义：stamped, carved, chiselled, graven
dots
abbr. 现代结核病控制策略（Directly-Observed Treatment Strategy）
近义：ellipsis

📚 更多「新概念英语第三册」例句

Armed with a torch, the vicar went up into the clock tower to see what was going on.
牧师拿着一支电筒走上钟楼想去看看究竟发生了什么事情。
A few minutes later, I was able to hurry away with precious chalk marks on my baggage.
几分钟后，我终于被放行，手提划着宝贵的粉笔记号的行李，匆匆离去。
To varying degrees, we all have secrets which we do not want even our closest friends to learn,
尽管我们人人都有各种大小秘密。连最亲密的朋友都不愿让他们知道，
Comedians base their jokes on tragic situation like violent death or serious accidents.
喜剧演员根据悲剧情节诸如暴死，重大事故等来编造笑话。
When a student recently saw two workmen using a pneumatic drill outside his university, he immediately telephoned the police and informed them that two students dressed up as workmen were tearing up the road with a pneumatic drill.
最近有个学生看见两个工人在学校门外用风钻干活，马上打电话报告警察，说有两个学生装扮成工人，正在用风钻破坏路面。
You soar effortlessly over high mountains and deep valleys.
你毫不费劲地飞越高山幽谷，