upstroke

美 { "us": "", "uk": "" }
英 { "us": "", "uk": "" }
数据源: ai_enrichment
指在书写、绘画或机械运动中向上的一笔或向上的动作,常用于描述笔迹、笔画或技术操作。

用法要点

句型搭配

通常用作名词,在句子中作主语或宾语,描述向上移动的笔画或动作,常见于描述书法、绘画或工程领域。

• The upstroke of the pen is smooth.
• He practiced the upstroke in calligraphy.
• The machine's upstroke is controlled by a lever.

介词用法

常与介词'on'或'in'连用,表示在某个过程中或特定位置上的向上动作,例如在笔画或机械循环中。

• Focus on the upstroke when writing.
• The upstroke in the cycle is critical.
• Adjust the pressure during the upstroke.

语域说明

主要用于正式或技术语境,如书法、艺术、工程或体育(如高尔夫挥杆),日常口语中较少使用,属于专业词汇。

• The upstroke is key in brush painting.
• Engineers analyze the upstroke in pumps.
• His golf upstroke needs improvement.

基础例句

When writing the letter 't', make sure the upstroke is straight and clean.

写字母't'时,要确保向上的一笔直而清晰。

She practiced the upstroke in her calligraphy class to improve her handwriting.

她在书法课上练习向上的一笔,以提高书写水平。

The artist used a gentle upstroke to create a soft line in the painting.

艺术家用轻柔的向上笔触在画中创造了一条柔和的线条。

In golf, a good upstroke helps lift the ball into the air smoothly.

在高尔夫中,一个好的向上挥杆有助于将球平稳地击向空中。

高级例句

In mechanical engineering, the upstroke of the piston is crucial for the pump's efficiency and must be precisely calibrated.

在机械工程中,活塞的向上冲程对泵的效率至关重要,必须精确校准。

The study analyzed the upstroke in brushstroke techniques, highlighting its role in traditional Chinese art preservation.

这项研究分析了笔触技术中的向上笔画,强调了其在传统中国艺术保护中的作用。

During the business presentation, the manager emphasized the upstroke in sales graphs as a key indicator of market recovery.

在商务演示中,经理强调了销售图表中的上升趋势,作为市场复苏的关键指标。

In academic writing, the upstroke of data trends can signal positive correlations that require further statistical validation.

在学术写作中,数据趋势的上升可能表示正相关,需要进一步的统计验证。

高频搭配

verb

execute an upstrokepractice the upstrokecontrol the upstrokeemphasize the upstrokesmooth upstroke

adjective

smooth upstrokesharp upstrokegentle upstrokepowerful upstrokeconsistent upstroke

noun

pen upstrokebrush upstrokepiston upstrokestroke upstrokemovement upstroke

adverb

slowly upstrokequickly upstrokecarefully upstrokeforcefully upstrokeprecisely upstroke

preposition

on the upstrokeduring the upstrokewith an upstrokein the upstrokethrough the upstroke

phrase

upstroke and downstrokeupstroke motionupstroke techniqueupstroke phaseupstroke pattern

常见错误

❌ 错误:He made a upstroke quickly.
✓ 正确:He made an upstroke quickly.

错误在于使用了'a'而不是'an'。'upstroke'以元音音素开头,所以应该用'an'来修饰,这是冠词使用的基本规则。

❌ 错误:The upstroke is important for write.
✓ 正确:The upstroke is important for writing.

错误在于使用了动词原形'write'而不是动名词'writing'。在介词'for'后面应该用名词或动名词形式,这里'writing'作为动名词更合适。

近义词辨析

upward stroke

'upward stroke'更通用,可以指任何向上的动作或笔画,而'upstroke'特指在书写、绘画或机械中的向上一笔,更具技术性或艺术性。

In calligraphy, the upstroke is delicate, whereas an upward stroke in general might refer to a simple upward movement.

ascending line

'ascending line'强调线条的上升方向,常用于几何或图表描述,而'upstroke'更侧重于动作或笔画本身,常见于实践操作如书法或工程。

The graph shows an ascending line, but in painting, the artist focuses on the upstroke to create texture.