rú / guǒ / jiàn / chéng / tài / kōng / tiān / tī / wǎng / fǎn / dì / qiú / hé / tài / kōng / huì / gèng / fāng / biàn

如果建成太空天梯，往返地球和太空会更方便。

If a space elevator were built, traveling between Earth and space would be easier.