Nowadays, almost every explorer and mountain climber uses the Global Positional System to make their journeys safer.

现在，几乎每个探险家和登山者都使用全球定位系统以确保旅行安全。

youdao

Nowadays, almost every explorer and mountain climber uses the Global Positional System to make their journeys safer.

现在，几乎每个探险家和登山者都使用全球定位系统以确保旅行安全。

youdao