Actol
乳酸銀
??? 情景例句
Fortunately, they returned safely.
說來幸運，他們平安回家了。
I'm swimming at the lake.
我在湖邊游泳。
It was necessary, therefore, to invent instruments that neither slumbered nor slept.
因此，有必要發明一種儀器，既不打盹兒，也不睡覺。