Bortam
[冶]硅硼钛铝锰合金
🗣️ 情景例句
A friend in need is a friend indeed.
患难朋友才是真正的朋友。
He knows most who speaks least.
大智者寡于言。
After that day they were separated, never to see each other again.
那日一别，他们再没重逢。