If sea levels continue to rise faster and faster, 如果海平面上升的速度持续加快

396. They are increasingly concerned.
     他们开始关心这一问题
397. Some are already looking for new,
     一些人已经开始寻找新的
398. more hospitable lands.
     更适合居住的岛屿
399. If sea levels continue to rise faster and faster,
     如果海平面上升的速度持续加快
400. What will major cities like Tokyo,
     那么东京这样的一个世界上
401. The world's most populous city, do?
     人口最多的城市该怎么办呢
402. Everyyear, scientists' predictions become more and more alarming.
     每年 科学家的预计都变的越来越触目惊心

来自《家园 第二部分 Home Part2》第 399 行