英汉词典

1. 部分地；不完全地；在某种程度上
    You use partly to indicate that something happens or exists to some extent, but not completely.

    e.g. It's partly my fault...
           这在一定程度上是我的错。
    e.g. He let out a long sigh, mainly of relief, partly of sadness...
           他长叹一口气，主要是因为如释重负，也有一部分是因为伤心。