1 sentence

1. 到目前为止，已经有八艘宇宙飞船访问过木星。

   dào​mù​qián​wéi​zhǐ, yǐ​jing yǒu bā sōu yǔ​zhòu​fēi​chuán fǎng​wèn guo mù​xīng.

   Eight spacecraft have visited Jupiter so far.

   Source: CCMatrix