Word · Frequency #9970
undersides
底面；下侧；底部
undersides is the plural of underside.
the side that is below or underneath; the bottom
- 1.
The side that is below or underneath, the bottom.
下面
下面；下侧；底面
In use
The label is on the underside of the bottle.
A thin layer of paint covers the underside of the bridge.
We found a crack on the underside of the table.
the underside of [something]
The underside of the leaf is green.
叶子的底面是绿色的。
on the underside of [something]
There is a sticker on the underside of the table.
桌子下面有一张贴纸。
from the underside
He examined the object from the underside.
他从下面检查了这个物体。
Common mistakes
Underside of the leaf is green.The underside of the leaf is green.
中文中常省略冠词，但英语可数名词单数前需要定冠词 'the' 来指代特定事物。
The under of the box is wet.The underside of the box is wet.
学习者误将介词 'under' 当作名词使用，应为名词 'underside' 表示底面。
Connections
Collocations
- underside of a leaf
- 叶子的背面
- The aphids were clustered on the underside of the leaf.蚜虫聚集在叶子的背面。
- underside of a rock
- 岩石的底面
- We found a salamander hiding under the underside of a rock.我们发现一只蝾螈躲在岩石的底面下。
- underside of a car
- 汽车的底盘
- The mechanic inspected the underside of the car for rust.机械师检查了汽车的底盘是否有锈蚀。
- underside of a bridge
- 桥的底面
- Bats roost on the underside of the bridge during the day.蝙蝠白天栖息在桥的底面。
- underside of a chin
- 下巴的下侧
- He had a small scar on the underside of his chin.他下巴的下侧有一个小疤痕。
Synonyms
Learner notes
Memory Tip
拆分记忆：under（下）+ side（边），即底边、下面。
Context & Register
语域：mixed 常见场景：technical description、everyday usage “underside”常用于正式或技术性描述（如物体底面），也常见于日常口语中指物体的下方，因此语域为混合。
Pronunciation & Spelling
All listed words end with -side and share the same pronunciation /saɪd/ (with possible stress variation), forming perfect rhymes with 'underside'.
Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
Learn the forms together
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.