However, rescue operations are proving difficult.
然而，事实证明营救工作非常困难。
新概念英语第二册 Lesson 88 Trapped in a mine

📚 句中词汇解析

从本句中提取的重要词汇

however [haʊ'ɛvɚ] 词频1
adv. 不管到什么程度;无论如何;然而;可是; conj. 不管怎样;
💡 how + ev =age （年龄，时代） + er [名词后缀],表示人,行为的主动者，做某事的人 → ad.然而；不管怎样
"But I am very much believable, however, you'll get him to come."
我相信你不管怎样都能把他请来.
近义：instead, nevertheless, nonetheless, notwithstanding, rather, regardless
difficult ['dɪfɪkəlt] 词频1 词根: di
adj. 困难的;难做的;难解的;不易相处的;
💡 dif不+fic做+ult表名词→不好做→困难的
"The short story is a difficult art form to master."
短篇小说是一种很难掌握的艺术形式。
近义：rough, troublesome, complicated, arduous, intricate, labored 反义：uncomplicated, basic, cushy, doss, easy, facile
rescue ['rɛskju] 词频2
vt. 营救，救援，使免遭损失;[法律] 非法劫回; n. 营救，救援;营救[救援]行动;
💡 来施救（谐音）：来施救就是来 营救 网友：yqy补充： re回，scue飞奔（＝scud）：回去的时候飞奔－－营救
"Her own boat capsized after she attempted a rescue."
她在设法营救别人时自己的船也翻了.
近义：recapture, regain, resume, retake, retrieve, salvage
proving
[计] 验证, 证明\\n[医] 药力试验(顺势疗法的名词)
近义：ascertainment, proof, test, verification, check, checking
operations
n. 运作；运营；业务操作（operation的复数）

📚 更多「新概念英语第二册」例句

They will be arriving here tomorrow.
明天就要到达此地。
Instead of catching fish,they catch old boots and rubbish.
他们往往鱼钓不到，却钓上来些旧靴子和垃圾。
He called out to the children and threw the ball back to the bank.
他大声叫着那些孩子，把球扔回到岸上。
Byrd now knew that he would be able to reach the South Pole which was 300 miles away, for there were no more mountains in sight.
伯德这时知道他能够顺利飞抵300英里以外的南极了，因为前面再没有山了。
The party then searched the whole cave thoroughly but did not find anything except an empty tin trunk.
队员们接着又把整个洞彻底搜寻了一遍，但除了一只空铁皮箱外什么也没找到。
You're not busy doing anything, are you?'
你不忙，是吗？”