Additional social stresses may also occur because of the population explosion or problems arising from mass migration movements—themselves made relatively easy nowadays by modern means of transport.

由于人口的猛增或大量人口流动（现代交通工具使这种流动相对容易）造成的种种问题也会对社会造成新的压力。

youdao

It has developed modern means of transport.

它拥有发达的现代交通工具。

youdao

Additional social stresses may also occur because of the population explosion or problems arising from mass migration movementsthemselves made relatively easy nowadays by modern means of transport 。

人口的猛增，或者大量的人口流动 如今，现代交通手段使得这种流动相对容易起来 产生的问题也会对社会造成新的压力。

youdao

In all the stir over this issue, it's important to remember that not only have modern means of transport and communication made it easier for movement to occur, but also technology has made it harder to chart the effects once it does.

FORBES: People!