entries → 射線
TSUMUGU · TOCFL 7 (est.) · 詞
射線 word · TOCFL 7 (est.)
射線 ＝ 射 ＋ 線
ㄕㄜˋ ㄒㄧㄢˋ · shèxiàn
noun — a ray (of radiation); a ray (in geometry, a half-line from a point)

字源 FORM — what the parts do

射to shoot, to emit (射出)shè
線line, thread (線條)xiàn
射線，射出的射，線條的線。

故事 STORY — a scene to remember it by

從一個點射（射）出去，一條線（線）只有頭，沒有尾。
Shot (射) out from one point, the line (線) has a start and no end.
記憶法
關 · Related
線條xiàntiáoa line, a stroke — the same 線光線guāngxiàna ray of light — the same 線