头对头
Traditional form:
頭對頭
Pinyin (reading):
tóuduìtóu
Definitions:
- (of clinical trial) head-to-head
Characters:
- 头 - head; chief, boss; first, top
- 对 - correct, right; facing, opposed
- 头 - head; chief, boss; first, top
Traditional characters:
頭對頭
tóuduìtóu