论述的

Carbon dioxide is like nitrogen in many ways, but if it is mixed with limewater, it causes the clear liquid to because milky, while nitrogen dose not. This is the test for carbon dioxide.

二氧化碳在许多方面类似于氮气，但如果它与石灰水混合，它就使清澈的液体变成乳状液，而氮气不能，由此可以鉴别热氧化碳。

I can't hide the feeling as I describe for Guillermo the tradition of stockings turned magically full by Santa Claus on Christmas Eve.

但我向格亚莫讲述圣诞老人在圣诞夜往长袜里送礼物的传统时，我掩饰不住自己的感情。