Monosulfide
一硫化物
🗣️ 情景例句
Where are the shopping carts?
购物车在哪儿？
I feel guilty because I haven't written her lately.
因为我最近没给她写信，我感觉到有罪。
After her departure, Aunt Harriet discovered that there were piles of empty wine bottles of all shapes and sizes neatly stacked in what had once been Bessie's wardrobe.
贝西走后，哈丽特姑妈发现在贝西以前用过的衣柜里整整齐齐地放着一堆堆形状各导、大小不一的酒瓶子。