参考答案:
1.although we have to face many difficulties , the ability of decreasing lose of tsunami is progressing.
2.这是一个惊人的失误，但是并不是什么罕见的：对于夏威夷的旅店，kong有同样的看法同时也学会降低了自己的期待。
3.Although it occurred in the Indian Ocean, it was detected by the Pacific Tsunami Warning Center.
4.be aware of warning sign:most waves strike, the ground shakes or the sea recedes dramatically.
