light projection光: light; ray定位: fixed position; location; or ...曾: relationship between great-g ...用: 40分钟跑完全程 run the course in 4 ...名: time; times; days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:光定位曾用名“光投射”，即可在微信中查询翻译
