shield
shield
noun
shieldless
adjective
语源
noun
- a broad piece of metal or another suitable material, held by straps or a handle attached on one side, used as a protection against blows or missiles
盾，盾牌 - something shaped like a shield, in particular
盾形物，尤指
■a sporting trophy consisting of an engraved metal plate mounted on a piece of wood
（体育比赛的）盾形奖牌
■a US police officer's badge
（美国）警察的盾形徽章
■(Heraldry)a stylized representation of a shield used for displaying a coat of arms
(纹章)盾形纹章
■(Geology)a large rigid area of the earth's crust, typically of Precambrian rock, which has been unaffected by later orogenic episodes, e.g. the Canadian Shield
(地质)地盾 - a person or thing providing protection
保护人；保护物
a protective coating of grease provides a shield against abrasive dirt.
涂一层防护油可防止导致磨损的污垢侵害。
■a protective plate or screen on machinery or equipment
（机器或设备上的）防护装置（或屏幕）
■a device or material that prevents or reduces the emission of light or other radiation
防辐射装置（或材料）
■a hard flat or convex part of an animal, especially a shell
背甲；头胸甲；龟甲板
- [with obj.]protect (someone or something) from a danger, risk, or unpleasant experience
保护；防护
he pulled the cap lower to shield his eyes from the glare.
他把帽子往下拉，保护眼睛不受强光照射。
these people have been completely shielded from economic forces.
这些人完全不受经济力量的影响。
■prevent from being seen
不被看见
the rocks she sat behind shielded her from the lodge.
她坐在岩石后面，从小屋那边看不见她。
■enclose or screen (a piece of machinery) to protect the user
安装防护装置（或防护屏）
■prevent or reduce the escape of sound, light, or other radiation from (something)
防止（或减少）辐射
uranium shutters shield the cobalt radioactive source.
铀遮光器屏蔽钴辐射源。
shieldless
adjective
语源
- Old English scild (noun), scildan (verb), of Germanic origin; related to Dutch schild and German Schild, from a base meaning 'divide, separate'
考试词汇表
