narrow beam狭窄: narrow; cramped的: 4次方是 The fourth power of 2 i ...光线: ray狭窄的: cabined; close; confined; constrictive; cramp; incommodious; limited; narrowed; slender; small; stenotic; strait; strictured变狭窄的: stenosing下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:狭窄的光线，即可在微信中查询翻译
