Barrier polymer
[化] 阻透聚合物
🧩 词语组成解析
🗣️ 情景例句
Challenge, the feeling of accomplishment, and knowing that you have made a contribution.
挑战，成就感和知道自己做出了贡献。
The ground around here is stony and not very good for farming.
在这里附近的地多石做为耕作不很好的。
When he got married, Alf was too embarrassed to say anything to his wife about his job.
艾尔弗结婚时，感到非常难为情，而没有将自己的职业告诉妻子。