He suggested that a double railway-tunnel should be built.
他提议建一条双轨隧道，这样就解决了通风问题。
新概念英语第二册 Lesson 64 The Channel Tunnel

📚 句中词汇解析

从本句中提取的重要词汇

double ['dʌbl] 词频1 词根: du
adj. 双的;两倍的;两面派的;双人用的; vt. 使加倍;把…对折;重复; vi. 加倍，加倍努力;快步走; adv. 两倍地;双重地; n. 两倍;双精度型;
💡 doub二，双+le反复 → 反复两倍 → 翻倍
"I'll double-check the figures."
我将对这些数字进行复核。
近义：twice, duplicate, increase, intensify, multiply, redouble 反义：rive, rupture, break, chap, crack, fissure
tunnel ['tʌnl] 词频2
n. 隧道;地道;烟道;（动物栖息的）穴; vi. 打通隧道;挖掘隧道; vt. 在…挖掘隧道;在…打开通道;
💡 tunn管道+el表名词 →隧道
"the Anglo-French consortium that built the Channel Tunnel"
修建英吉利海峡隧道的英法财团
近义：subway, underpass
railway ['relwe] 词频1
n. 铁路;铁道;铁路系统;铁道部门; vi. 乘火车旅行;在…铺设铁路;
"The railway line was electrified in the 1950s."
这条铁路线在20世纪50年代就实现了电气化。
近义：rail, railroad, track
built [[bilt]] 词频1
build的过去式和过去分词
近义：constructed
suggested [[sə'dʒɛstid]]
a. 建议的；暗示的
近义：proposed, submitted

📚 更多「新概念英语第二册」例句

I visited museums and sat in public gardens.
我参观了博物馆，还去了公园。
Fishing is my favourite sport.
钓鱼是我特别喜爱的一项运动。
Debbie intends to take short rests every two hours.
黛比计划每两小时休息一下。
Last week at a dinner party, the hostess asked me to sit next to Mrs.Rumbold.
在上星期的一次宴会上，女主人安排我坐在兰伯尔德夫人的身旁。
As soon as he had finished, Jenny told him she wanted to go home.
他刚一讲完，珍妮就对他说她要回家。
On the B.B.C. you can hear the clock when it is actually striking because microphones are connected to the clock tower.
当大钟打点的时候，你可以从英国广播公司的广播中听到，因为钟塔上接了麦克风。