Polyphenylethyl
聚乙基苯
🗣️ 情景例句
ready for the graduation ceremony,
为毕业典礼做准备，
Self-distrust is the cause of most of our failure.
我们的失败多数是由于缺乏自信。
Hmm! That's a bit expensive. Can I try them on, please?
嗯！就是贵了一点儿。我可以试穿一下吗？