1
- each of the lines in which light (and heat) may seem to stream from the sun or any luminous body, or pass through a small opening光线; 亮光：
a ray of sunlight came through the window.
从窗户透进一缕阳光。
1.1
- the straight line in which light or other electromagnetic radiation travels to a given point辐射状直线。
1.2
- with adj. or noun modifier
rays
a specified form of non-luminous radiation射线, 辐射线; 粒子线： water reflects and intensifies UV rays.
水能反射并增强紫外线。
1.3
- Mathematics any of a set of straight lines passing through one point【数】半直线。
1.4
rays
informal, chiefly N. Amer. sunlight considered in the context of sunbathing〈非正式, 主北美〉（日光浴用语）阳光：catch some rays on a secluded sandy beach.
在隐蔽的沙滩上晒太阳。
1.5
- figurative an initial or slight indication of a positive or welcome quality in a time of difficulty or trouble〈喻〉（困境中的）一丝（积极因素）：
if only I could see some ray of hope.
但愿我能看到一丝希望之光。
2
- a thing that is arranged radially, in particular辐射状东西, 尤指：
2.1
- Botany (in a composite flower head of the daisy family) an array of ray florets arranged radially around the central disc, forming the white part of the flower head of a daisy【植】（菊科植物头状花序的）舌状花, （盘）边花。
2.2
- （亦作fin ray）Zoology each of the long slender bony supports in the fins of most bony fishes【动】辐肋; 条; 鳍刺。
2.3
- Zoology each radial arm of a starfish【动】（海星的）放射形口腕, 辐腕。
no obj., with adverbial of direction
1- spread from or as if from a central point呈辐射状伸出, 从中心四下延展：
delicate lines rayed out at each corner of her eyes.
她眼角细细的皱纹密密分布。
1.1
- with obj. and adverbial of direction poetic/literary radiate (light)〈诗/文〉放射, 射出（光线）：
the sun rays forth its natural light into the air.
太阳朝天空中放射出自然的光线。
短语
ray of sunshine
- informal a person or thing that brings happiness into the lives of others〈非正式〉给人带来幸福的人（或物）。
派生词
rayless
adjective （chiefly Botany【主植】）词源
Middle English: from Old French rai, based on Latin radius 'spoke, ray'. The verb dates from the late 16th cent.
1
- a broad flat marine or freshwater fish with a cartilaginous skeleton, wing-like pectoral fins, and a long slender tail. Many rays have venomous spines or electric organs.鳐。
1.1
- Order Batiformes: several families, including Rajidae (the skates).鳐目：数科, 包括鳐科。
词源
Middle English: from Old French raie, from Latin raia.
(亦作re)
1
- Music (in tonic sol-fa) the second note of a major scale【乐】（首调唱名法）大调的第二音。
1.1
- the note D in the fixed-doh system固定C大调之D音。
词源
Middle English re, representing (as an arbitrary name for the note) the first syllable of resonare, taken from a Latin hymn （see SOLMIZATION）.