1
- technical composed of or characterized by a single part or structure〈技〉单一的; 结构单一的。
1.1
- (of a communication system, computer circuit, etc. ) only allowing transmission of signals in one direction at a time（通讯系统、计算机电路等）单工的。
- a simple or uncompounded word简单词。
词源
late 16th cent.: from Latin， literally 'single'， variant of simplus 'simple'.