火星人麻糍秘密地来到地球。他住在我国万里长城的某个烽火台上，只有通过暗号才可以呼叫并联系上他。据说暗号是一个包含大写字母（下列图片对应单词的首字母）和数字的10位数组合。请根据下图提示，猜测暗号。

暗号是：

CS3SW9R8CH

二 读一读，想一想，答一答。

Hello, everyone! I am Ella, a little seed（种子）. I want to find a good place to grow. Do you have any ideas? Now please come and follow me to travel around the world（环游世界）.
Look! I am in New York now. It is so cool and windy. I can’t even stand still（不动的）. I’ll go.
四年级下册
Hi, I am in Moscow. It’s snowy. The temperature is $-20°\mathrm{C}$ here. It’s very cold for me to be outside today. I’ll go.
Now I am in Singapore（新加坡）. It’s rainy here. The ground is wet. And I can’t enjoy the sunshine. I’ll not stay（停留）.
I am in Australia now. It is $28°\mathrm{C}$ here. It’s a little hot. I feel thirsty. I don’t like the weather. I’ll not stay, either.
I am in Amsterdam（阿姆斯特丹）. It’s sunny and warm here. I am very happy here, and I think this is the right place to grow.
你推荐Ella生活在什么地方？为什么？

答案不唯一，言之有理即可。