New words：

residential /ˌrezɪˈdenʃl/ adj.适合居住的；住宅的；需要在某地居住的；提供住宿的

-ial = 形容词后缀，表示 “与… 相关的、具有… 性质的”

词汇链：

reside（v. 居住）→ resident（n. 居民）→ residence（n. 住宅）→ residential（adj. 住宅的；居住的）

必记高频搭配

residential area / district（住宅区；居住区）

This is a quiet residential area.

residential building（住宅楼）

There are many new residential buildings here.

residential community（居住小区；社区）

Our residential community is clean and tidy.

residential school（寄宿学校）

His brother studies in a residential school.

residential land（住宅用地）

This is residential land, not for business.