一面

1. one side

♦ 这座房子朝南的~有两个窗户。 The house has two windows on the south side.

2. one aspect

♦ 这只是问题的~。 This is only one aspect of the question.

3. at the same time; simultaneously

♦ ~教, ~学 learn while teaching

4. 书 have met once before

♦ 未尝~ have never met before

~之词 the statement of only one of the parties~之交 (又作‘一面之雅’) have met only once; be casually acquainted~之缘 having met once (as ordained by fate)