Ottrelite
粒硬绿泥石
🗣️ 情景例句
Do I have to get it done by noon?
我必须在中午以前做完吗？
How do you spend your leisure time?
你怎样打发业余时间？
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。