House dust
室內塵埃
?? 詞語組成解析
house
[ha?s]
n. 房屋;全家人;（從事某種生意的）公司;（英國）下議院;
v. 給…提供住房;收藏;安置;
dust
[d?st]
n. 灰塵;（建筑物內、家具或地板等上的）灰塵;遺骸，尸體，人體，人;〈口〉金粉，粉末，粉劑，花粉;
vt.& vi. 拂（一拂），撣（一撣）;
vt. 撒（粉）于;擦去…的灰塵;擦灰;撢去;
??? 情景例句
Why does he want to do that?
為什么他要那么做呢？
Mary is in her freshman year.
瑪麗大學一年級。
Over the years, one may well become a authority on one's hobby and will very probably be asked to give informal talks to little gatherings and then,
一人積了多年經驗會成為自己這種愛好的權威，很可能應邀在小型集會上作非正式的講話。