Read Edit View history 一级头 yījítóu first stage Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 一级头/一級頭 · yījítóu · first stage 2026/03/04 一级头 / 一級頭 yījítóu first stage first stage (of a diving regulator) 潜水员正在检查他的一级头。 created sense Mar 4, 2026, 02:25 AM