Scleroclase
脆硫砷鉛礦
??? 情景例句
I applied for a job as a lifeguard at the community pool.
我申請了社區游泳池的救生員工作。
All of those houses have been built in the last ten years.
所有那些房子在這10年里被造的。
it has to develop (partly by means of touch) the ability to judge roughly three-dimensonal distances.
兒童必須發展（部分通過觸覺）粗略判斷三維空間距離的能力。