另外一些软件则无需占用很少资源，因为它们在漫游过程中随时下载，但是这需要用户具备良好的手机或者Wi-Fi无线信号，至少在导航开始的时候。

Others are much slimmer, because they download the apps on the fly, but these require you to have good cellular or Wi-Fi coverage at least at the start of a navigation session.

youdao

另外一些软件则无需占用很少资源，因为它们在漫游过程中随时下载，但是这需要用户具备良好的手机或者Wi-Fi无线信号，至少在导航开始的时候。

Others are much slimmer, because they download the apps on the fly, but these require you to have good cellular or Wi-Fi coverage at least at the start of a navigation session.

youdao