uni·di·rec·tion·al /ˌjunɪdəˈrɛkʃnəl, daɪ, ʃənḷ/
單向
uni·di·rec·tion·al /ˌjunɪdəˈrɛkʃnəl, daɪ, ʃənḷ/ 形容詞
unidirectional
單向的
unidirectional
adj : operating or moving or allowing movement in one direction
only; "a unidirectional flow"; "a unidirectional
antenna"; "a unidirectional approach to a problem"
[ant: bidirectional]