Polymer degradation
[化] 聚合物降解
🧩 词语组成解析
🗣️ 情景例句
I'm glad I got to know you.
我很高兴能够认识你。
By the way, before leaving this subject, I would like to add a few comments.
在结束这个问题之前顺便一提，我希望能再提出一些看法。
because balloons can be a great danger to aircraft.
因为气球有可能给飞机造成极大的危险。