Silicoglaserite
硅鈣石
??? 情景例句
to serve the senior citizens
為Riverdale的老年人
Unless there is a sudden change of political situation, it is not accepted to execute the contract only partially.
除非有什么突然的政局變化，否則執行部分合同不能被接受。
The examination put a lot of stress on him.
那次考試給了他很大的壓力。