Samaria
[化] 氧化钐
🗣️ 情景例句
we can ship the goods one month ahead of time.
我们可以提前一个月起运。
I would like to confirm the reserved seat.
我要确定已预定的位置。
We spent some time looking around under the trees for some wood.
我们花了些时间在树下四周找木柴。