behind [bɪ'haɪnd] 词频1

prep. （表示位置）在…的后面;支持;（表示顺序）在身后;（表示比较）落后于; adv. 在后面;向后;在后面较远处;（落）在后面; n. 〈口〉屁股;

💡 be构成一些介词+hind藏在后面→在…后面

"The crowd had to stand behind barriers."

近义：back, posterior, rear, rearward, lagging, late 反义：quick, rapid, accelerated

case [kes] 词频1 词根: 切开

n. （实）例，事例;情况，状况;诉讼（事件），案件，判例;容器（箱，盒）; vt. 把…装入箱（或盒等）内;加盖于;包围，围住;[俚语]（尤指盗窃前）探察，侦查，窥测;

💡 cas(to fall)+e→事件；事情；场合；状态；诉讼事件；患者

"They filed an application to have their case heard early."

近义：incident, instance, occasion, occurrence, opportunity, circumstance

necktie ['nektai;'nekˌtai] 词频4

n. 领带，领结;

"He bought a fancy necktie."

近义：tie, cravat

book [bʊk] 词频1

n. 书;卷;课本;账簿; vt.& vi. 预订; vt. 登记;（向旅馆、饭店、戏院等）预约;立案（控告某人）;订立演出契约; adj. 书的;账簿上的;得之（或来自）书本的;按照（或依据）书本的;

💡 簿(谐音): 书

"She seemed totally absorbed in her book."

近义：prebook, preorder, reserve, textbook, tome, volume