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lacuna podcast

lacuna n. [luh-KOO-nuh]

空白，间隙，腔隙

Definition

1: a blank space or a missing part : gap; also: deficiency
1：一块空白或者缺失的部分：间隙；也指：缺陷

2: s small cavity, pit, or discontinuity in an anatomical structure
2：解剖学上的小腔，小凹，不连续

Did You Know?

Exploring the etymology of lacuna involves taking a plunge into the pit — or maybe a leap into the lacus (that’s the Latin word for “lake”). Latin speakers modified lacus into lacuna and used it to mean “pit,” “cleft,” or “pool.” English speakers borrowed the term in the 17th century. It is usually pluralized as lacunae; however, lacunas is an accepted variant plural. Another English word that traces its origin to lacuna is lagoon, which came to us by way of Italian and French.

词源词根演化：lacus (“lake”) —> lacuna (“pit, cleft, pool”) —> lacuna

要探索 lacuna 的词源，需要跳到 pit 坑里 — 或者跳到湖里 lacus（拉丁语 “湖”）。拉丁世界把 lacus 修改了一下，变成了 lacuna，用于表示 “坑”，“裂”，“池”。英语世界在17世纪借来了 lacuna，通常它的复数形式写作 lacunae，但是 lacunas 也是一种可接受的复数变体写法。另外一个可以追溯到 lacuna 的英语单词是 lagoon，它是通过意大利语和法语进入英语的。

Examples

The osteocyte is a cell that is isolated in a lacuna of bone.
骨细胞是一种隔绝在骨窝中的细胞。
“During her investigation, Charlie disguises herself as a man, but it’s not entirely clear why the private detective does this — the only lacuna in an otherwise well-handled plot.”
— Eve Ottenberg, The Washington (D.C.) City Paper, 8 Apr. 2019
在她的调查过程中，Charlie把她自己伪装成男人，但是为什么这个私家侦探要这么做，并没有明确表述 — 这是唯一的缺陷，否则是一个完美的情节设定。

Bonus - Learner’s Word

gourd n.

/ˈguɚd/ 葫芦
[count] : any one of several types of fruits that have a hard shell and that are used for decoration and not for eat

a variety of gourds

out of your gourd US, informal
: crazy
That guy is completely out of his gourd. [=(more commonly) out of mind]

— sometimes used to give emphasis

I was bored out of my gourd. [= I was very bored]

rhythm n.

[ˈriT͟Həm] 韵律，旋律，节奏，步调
Origin: mid 16th century (also originally in the sense ‘rhyme’): from French rhythme, or via Latin from Greek rhuthmos (related to rhein ‘to flow’).

1: a regular, repeated pattern of sounds or movements
[count]

The music has a fast/slow/steady rhythm. [=beat]
African/Caribbean rhythms

— often + of

the rhythm of the poetry
the rhythm of his breathing
the rhythm of the tides

[noncount]

the composer’s use of jazz rhythm
He can’t play/dance in rhythm. = He has no sense of rhythm.
rhythm instruments

2 [count]: a regular, repeated pattern of events, changes, activities, etc.

She enjoys the rhythms of country life.
Travel can disrupt your body’s daily/biological/circadian rhythm.

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