一頭 Simplified: 一头 On the HSK 7-9 vocabulary list, at CEFR level C2. yītóu ㄧ ㄊㄡˊ one head a head full of sth one end (of a stick) one side headlong directly rapidly simultaneously Sources CC-CEDICT, CC BY-SA 4.0 pinyinjs, Apache-2.0 国际中文教育中文水平等级标准, 中华人民共和国教育部, MIT