妹妹 n. younger sister; sister; sis。
至于 phr. as for; as to; as regards; with regard to; wi
孤儿院 orphanage; orphan home。
亲和力 affinity。
吁 int. oh。v. sigh; breathe out。n. appeal; petition。
连锁店 multiple shop; chain store。
办事处 office; agency; branch office。
发明名称 title of invention。
换气 v. ventilate; aerate; change air; breathe; take a
建筑 v. build; construct; erect。n. building; structure;
channel n. 频道，电视频道；管道，通道，航道；渠道，手段；沟渠，沟槽；河床；海峡；信道
报税 v. file taxes; declare taxes; report taxes; submit
增长率 rate of increase; growth rate。
干燥剂 drier; drying agent; desiccant; desiccating agent
成效 n. effect; result; outcome; fruit; benefit; effica