Methaldehyde
四聚乙醛
🗣️ 情景例句
Hi. How was lunch?
嗨 。午餐怎么样？
There are forests here,and lumbering is important.
在这里有森林，木材业很重要。
and no child born into one on the opposite side of the globe can ever achieve the thousandth part.
在地球的另一边，诞生在另一个社团的孩子与他就很少有相同的风俗。