internal

将“internal”与“in”结合记忆，想象一个内部结构，如房子的内部（interior）或机器的内部部件（internal parts）。这样，“in”代表向内，“ternal”暗示着与某个物体或概念的内部相关联，从而帮助记住“internal”表示“内部的”或“内在的”。

internal 内部的

来自in的比较级，即更里面的，内部的。

internal (adj.)

early 15c., from Medieval Latin internalis, from Latin internus "within, inward, internal," figuratively "domestic," expanded from pre-Latin *interos, *interus "on the inside, inward," from PIE *en-ter- (cognates: Old Church Slavonic anter, Sanskrit antar "within, between," Old High German unter "between," and the "down" sense of Old English under); suffixed (comparative) form of *en "in" (see in). Meaning "of or pertaining to the domestic affairs of a country (as in internal revenue) is from 1795. Internal combustion first recorded 1884. Related: Internally.

1. It took internal whistle-blowing and investigative journalism to uncover the rot.

是内部检举和调查性报道揭露了这一腐败事实。

2. This cuttlefish has a horny internal shell like a pen.

这只乌贼有一个笔状的角质内壳。

3. The parliament described the decree as interference in the republic's internal affairs.

议会形容此法令为对共和国内政的干涉。

4. What is missing, however, is an internal, artistic cohesion.

不过，缺乏的是一种内在的艺术凝聚力。

5. The team has been plagued by indecision and internal divisions.

优柔寡断与内部分裂深深困扰着该团队。

【interior, inward, inner, inside, internal】
这组词都有“内部的，内在的”的意思，其区别是：
interior: 指某物的内部，尤指某物的内侧；也可指内地的或国内的。
inward: 指朝着中心或内部方向的，侧重方向而不是位置；也可指内心的隐密活动。
inner: 含义广泛，指事物中心或接近中心的部位，也可指内心隐密的活动。
inside: 多指处于某物内部或靠近内部，常可与inner换用，可引申指内幕的，秘密的。
internal: 书面用词，医学上多用，指事物的内部，也可指国内的或内政的。