a/an upright
He nailed the boards to the uprights.
他把木板钉在立柱上。
立柱；竖杆
立式钢琴；字谜竖读词；结构中的任何垂直部分；作为柱子或桩的垂直结构构件；在双字谜或三字谜中,由交叉字的首字母、中间字母或末字母提示的词。
a vertical part of a structure, such as a post or stake
结构中的任何垂直部分
Any vertical part of a structure.
作为柱子或桩的垂直结构构件
a vertical structural member as a post or stake
在双字谜或三字谜中,由交叉字的首字母、中间字母或末字母提示的词。
A word clued by the successive initial, middle, or final letters of the cross-lights in a double acrostic or triple acrostic.
立式钢琴
a piano with a vertical sounding board
The carpenter checked each upright before fixing the shelf to the wall.
木匠在把搁板固定到墙上之前检查了每一根立柱。
用法提示：这里的 upright 是可数名词，指垂直的支撑柱（立柱）。
AI contextual example
The fence's wooden uprights had rotted after years of rain.
篱笆的木立柱经过多年雨水已经腐烂。
用法提示：uprights 是 upright 的复数形式，指多个垂直结构件。
AI contextual example
Make sure the upright is perfectly level before you pour the concrete.
在浇筑混凝土之前，要确保立柱完全垂直。
用法提示：此处 upright 作名词，表示垂直的结构构件。
AI contextual example
He nailed the boards to the uprights.
他把木板钉在立柱上。
She prefers an upright to a grand piano.
比起三角钢琴，她更喜欢立式钢琴。
The upright of the fence is rotting.
围栏的立柱正在腐烂。
grammar · medium
易错句子The fence has two wooden upright.
正确表达The fence has two wooden uprights.
Upright作为可数名词，复数形式应加-s。
grammar · medium
易错句子She practices on upright every day.
正确表达She practices on an upright every day.
Upright作为可数名词单数，需要一个冠词（如an）。
针对名词义项：垂直构件（如柱子、桩），与之相对的是水平构件
vertical是形容词，描述方向；upright是名词，指垂直构件。
post泛指任何柱子，upright特指建筑物中的垂直支撑构件。
木立柱
The fence is supported by several wooden uprights.
围栏由几根木立柱支撑。
直立梁
The upright beams form the frame of the house.
直立梁构成了房子的框架。
铁柱
The gate is anchored with heavy iron uprights.
大门用沉重的铁柱固定。
立式钢琴
She practices on an upright piano every evening.
她每晚在立式钢琴上练习。
立式大钢琴
The music room contains an upright grand piano.
音乐室里有一架立式大钢琴。
立式乐器
The upright instrument was a gift from her grandmother.
这件立式乐器是她祖母送的礼物。
与 upright 同为垂直承重结构
加固直立构件的斜撑
立式钢琴的主要操作部分
立式钢琴内放大声音的部件
与 upright 搭配构成框架的水平构件
直挺挺地
He sat bolt upright when he heard the alarm.
听到警报声，他直挺挺地坐了起来。
发长 /aɪ/ 音 (如 high, light)
Same pattern, same sound
Dictionary facts from AI_FALLBACK, DICTIONARY_API_DEV, ECDICT, WIKTIONARY, WORDNET.