When in a new city, make sure you travel in pairs. Don't take your surroundings for granted.

当身处一个陌生城市的时候，不要单独行动。不要对周围的环境想当然。

youdao

Perhaps it's because Striders typically travel alone or in pairs.

也许是他们总是独行或是二人结伴而行的缘故。

youdao

Beijing railway has the original railway, every day through three pairs of conventional trains, a pair of train travel round-trip air-conditioned car in Beijing - brook sources.

铁路有京原铁路，每天有三对常规列车通过，一对旅游专列空调车往返于北京—涞源之间。

youdao

Foreign journalists with video cameras are still working in central Iraq, but now circumstances are such that when they leave their fortified compounds, they must travel in pairs of cars, accompanied by armed guards.

ECONOMIST: Iraq documentaries

Then Lanworth knits in observations made at ground level by four pairs of people who travel the back roads of America taking notes on how far along crops are or how wet or dry the fields might be.

FORBES: Sky High Tips For Crop Traders