1.remain to 保持

Some evident problems remain to be sorted out.
仍有些突出问题亟待解决。

Two other posts-the commission's vice chairmen-also remain to be announced.
其它两个职位军委副主席亦有待公布。

2.speak of 谈到，讲到

The lyrics and imagery speak of over-fishing, deforestation, and smog.
歌词和比喻谈到了过度捕捞、滥伐树木和烟雾。

Some israeli politicians speak of another objective: to show ordinary palestinians that hamas is the obstacle to peace and prosperity.
有些以色列政客说到了另一个目标：向普通巴勒斯坦人证明哈马斯是和平与繁荣的障碍。

3.seem to 似乎

But you don't seem to think so.
但你似乎不这么看。

Europe's troubles seem to be costing them business.
欧洲危机看来正在影响到当地的业务。