firsthand

adj [attrib 作定语], adv gained or coming directly from the original source 第一手（的）; 直接从来源处得到（的）: firsthand information 第一手信息 * experience sth firsthand 亲身经历某事.

first finger, first floor, first gear, first lady, first name, first night, first of all, first offender, first officer, first or last, first refusal, first school, first-aid, first-born, first-class, first-day cover, first-footing, first-fruit, first-hand, first-rate, firstly, firth, fiscal, fiscal year, fish, fish and chips, fish cake, fish finger (US fish stick), fish out, fish pond, fish weir, fish-eye lens, fish-farm, fish-hook, fish-kettle, fish-knife, fish-net, fish-plate, fish-slice, fisherman,