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n (1)河床(bed of a river，stream or canal)[C]：

(2)溝，槽(U-shaped passage for a stream of water or other kinds of liquids)[C]：Heavy rain wore a～in the yard.大雨在院子里沖出一條溝。a sewage～污水溝;irrigation～灌溉渠;

(3)航道(passage of deeper water in a river，harbour or sea through which ships can sail)[C]：～marked by buoys 有航標(biāo)的航道;The main～s were closed by enemy submarines.主要航道被敵人的潛水艇封鎖了。

(4)海峽(narrow stretch of water joining two seas or oceans)[C]：We sailed across the English C～.我們橫渡英吉利海峽。

(5)渠道，途徑(means of sending or receiving news，information，etc)[C，常 pl(但 sing意義)](fig)：get information/notify the authorities through the usual～s通過通常渠道獲得信息/報(bào)告當(dāng)局;go through the official/normal/secret ～s通過官方/正常/秘密途徑;have one's own～s of trade有自己的貿(mào)易渠道;open new～s of information開辟新的信息渠道;

(6)頻道，波段(particular band of radio-waves frequencies used for sending or receiving signals)[C]：The country television has four main～s.這家國家電視臺(tái)有四個(gè)主要頻道。Let's see what's on the other～，shall we? 咱們看看另一頻道播什么好嗎? What's her favourite～? 她最喜歡哪個(gè)臺(tái)? television～s 電視頻道;switch to another～換一個(gè)頻道;

(7)(思想，行為)方法(向)(way，course，or direction of thought or action)[C]：He directed his efforts into other～s. 他把精力用到別的方面去了。need a new～for one's activities需要一種新的行為方式;

vt (1)開渠(航)道(make a channel or channels through or in)[T+n]：The river～(l)ed its course(its way)through the valley/under the ground. 河流穿行于峽谷中/地下?！玜 street在街上挖溝(引水);

(2)(用渠)疏導(dǎo)(make water or liquid flow in a channel)[T+n，T+n+prep]：Water was～(l)ed into the garden through a ditch.水通過一條小溝引進(jìn)了花園?！玜 stream疏導(dǎo)溪流;

(3)導(dǎo)(引)向(direct into a particular course or channel)[T+n，T+n+prep](fig)：～one's abilities into(doing)sth useful把能力用到(做)有用的事情上來;～one's energies into a new scheme 把精力用于新計(jì)劃;～one's thought towards one phase of the problem把腦子用到問題的一個(gè)方面;～North Sea oil revenues into industry將北海石油總收入投向工業(yè);〖同〗direct，guide，lead，route