?? 詞語組成解析
a. 聚乙烯基的
n. 甲醛\\n[化] 甲醛
??? 情景例句
I'm so glad you found the bag and took the time and trouble to return it.
我很高興你發現了旅行袋而且不怕麻煩花時間將它送來。
If he doesn't take care of him, I will.
如果他不，我將照顧他。
The only way that they can preserve their history is to recount it as sagas -- legends handed down from one generation of another.These legends are useful because they can tell us something about migrations of people who lived long ago, but none could wri
他們保存歷史的唯一辦法是將歷史當作傳說講述，由講述人一代接一代地將史實描述為傳奇故事口傳下來。