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1·She gave a strained laugh.

她勉强笑了一下。《牛津词典》

2·She looked a little pale and strained.

她看上去面色有点儿苍白，神情紧张。《柯林斯英汉双解大词典》

3·Relations between the two families are strained.

两家关系紧张。《牛津词典》

4·There was a strained atmosphere throughout the meeting.

会议自始至终气氛紧张。《牛津词典》

5·Their five-year relationship was strained beyond breaking point.

他们长达5年的关系紧张得超过了极限。《柯林斯英汉双解大词典》

6·He sings with the strained discomfort of someone whose voice hasn't quite broken.

他紧张不适地唱着, 嗓音像个还未完全变声的人。《柯林斯英汉双解大词典》

7·The relations between the two countries are strained.

两国关系紧张。《新英汉大辞典》

8·Too little light makes the eyes work harder, so they do get tired and strained.

光线不足会让用眼更费劲，双眼会感到疲劳和紧张。

9·More than half of American adults are unmarried, and researchers have found that even among those who are married, 30% of relationships are severely strained.

超过一半的美国成年人还没有结婚，研究人员发现，即使在已婚人士中，也有30%的夫妻关系非常紧张。

10·According to two recent studies, randomly assigned roommates of different races are more likely to experience conflicts so strained that one roommate will move out.

根据最近的两项研究，随机分配不同种族的人成为室友更有可能造成紧张的冲突，以至于一个室友会搬出去。

紧张的

1·There was a strained atmosphere throughout the meeting.

会议自始至终气氛紧张。《牛津词典》

2·He sings with the strained discomfort of someone whose voice hasn't quite broken.

他紧张不适地唱着, 嗓音像个还未完全变声的人。《柯林斯英汉双解大词典》

3·The relations between the two countries are strained.

两国关系紧张。《新英汉大辞典》

4·Too little light makes the eyes work harder, so they do get tired and strained.

光线不足会让用眼更费劲，双眼会感到疲劳和紧张。

5·That is what my old friend said with a strained voice.

这就是我的老朋友用紧张的声音所说的话。

勉强的

1·Smiling for the cameras, the two men strained to make small talk.

这两个男人微笑着面对镜头，勉强地东拉西扯。《柯林斯英汉双解大词典》

2·You throw the party and she puts on a strained smile.

派对如期开始了，她勉强挤出一个微笑。

3·Moth kept the smile on her face, but the clockmaker could see it was strained, and her arms moved stiffly.

莫丝脸上一直保持着笑容，但钟表匠可以看出她的笑容是勉强堆在那里的，而且她的手臂的摇晃也是僵硬的。

4·Poor? Why poor? she echoed with a strained laugh.

“可怜？可怜什么！”她勉强笑了笑重复说。

5·Hullo darling Catherine said in a strained voice.

“哈罗，亲爱的，”卡萨玲用一种勉强的声调说。

(1)strained conditionn. 应变状态；受力状态