Wittite
硫硒铅铋矿
🗣️ 情景例句
Nobody displayed any interest.
没人显得感兴趣。
Accidents will happen in the best regulated families.
即使家规严，丑事总难免。
Since then, they have been trying to find out how the fire began.
从那时起，他们一直试图找出起火的原因。