Read Edit View history 头对头 tóuduìtóu head-to-head Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 头对头/頭對頭 · tóuduìtóu · head-to-head 2026/03/04 头对头 / 頭對頭 tóuduìtóu head-to-head (of clinical trials) head-to-head 这种新药正在进行一项头对头临床试验。 created sense Mar 4, 2026, 02:25 AM