n (1) 大(木，石，铁)块 (large solid piece or mass of wood， stone， metal， etc usu flat-sid-ed)[C]：a～of concrete/stone/granite/marble/wood/ice 一大块水泥/石头/花岗岩/大理石/木头/冰; wooden/concrete～s木头/水泥块;a butcher's～肉砧墩;be sent/go to the～送上/走上断头台;～diagram方块示意图;

(2) 积木块 (cube of wood，etc used as a child's toy for building)[C]：a set of (building)～一副积木;

(3) 一组(批，套) (large quantity of things considered as a single whole)[C]：a～of seats in a theatre/theatre tickets/shares in a business 剧院中连片的座位/一次购买的大量戏票/企业中的大宗股份;We sat in～A.我们的座位在A区。a～booking大宗预订座位;

(4) (分隔成独立单位或单元的)大楼 (large building divided into separate flats or offices)[C]：a～of flats公寓大楼;an office/apartment ～写字楼/居民楼;a tower～摩天大楼;

(5) 街区(的一边长)((length of one side of a group of) buildings separated from others by streets on four sides)[C]：take a walk round the～围绕街区散步;He lives on my～.他住在我这个街区。live three～s away from here住在离这儿三个路口远的地方;His house is four～s away. 他的房子过四个路口就是。Walk/Go two～s， then turn left.走两个街口，然后左拐。

(6)印模(板) (piece of wood or metal with words， patterns， etc cut into its surface for printing)[C];

(7) 障碍(物) (thing that makes movement or progress difficult or impossible)[C，通常sing]：a～in the pipe/the drain管子/水沟中的障碍物;a traffic/memory/heart～交通阻塞/记忆障碍/心脏梗塞;The police set up a road～to check cars.警察设置路障以检查车辆。The government's stubborn attitude was a～to further talks.政府的顽固态度是进一步会谈的障碍。〖同〗obstacle，barrier;

→′blockhead n 笨蛋;

vt (1) 阻碍(塞)，堵住 (make movement of flow difficult or impossible through sth) [T+n，T+n+adv(up)]：A snowdrift/large crowd/piece of rock is～ing the roads.风刮成的雪堆/一大堆人/一块岩石阻塞住了道路。～a door/the land routes堵住门/陆路;～sb's heart/sb's view堵塞心脏(的血液流通)/挡住某人的视线;The river/drain/entrance to the cave was～ed up by the big rocks. 河/水沟/山洞入口被大块的石头堵住了。His nose is～ed (up). 他的鼻子(因为感冒)不通气。Never～up ventilators.决不要堵住通风口。〖反〗clear;

(2) 阻碍(挡，止)(prevent sb/sth from moving or progressing)[T+n]：～an opponent's move/the enemy's advance/sb's entry/the progress in the talk/the traffic in the street 阻碍对手的行动/敌人的前进/某人进入/会谈的进展/街上的交通;～sb's plan/one's opponent/a deal阻碍某人的计划/对手/一笔交易;The opposition～ed the passage of the bill through parliament.反对党阻止这一议案在议会获得通过。〖同〗hinder，prevent;

block in/out (v adv) 粗略地画(制定)出 (vt)：～in a plan of a house 粗略地制定出建房计划;

→′blockage n 堵(阻)塞;堵(阻)塞物;′blockade n & vt 封锁