四级But because it's all digital it eliminates the used book market and eliminates any sharing and because homework and tests are through an access code, it eliminates any ability to opt out.

但因为它是全数字的，它消除了二手书市场，消除了任何共享，因为作业和测试都是通过访问代码进行的，所以它消除了任何选择退出的能力。

2018年6月四级真题（第三套）阅读 Section B

高考Parents ought to be able to opt out only for limited medical or religious reasons.

父母只能出于有限的医疗或宗教原因选择退出。

2017年高考英语北京卷 阅读理解 阅读C 原文

四级But critics say the digital access codes represent the same profit-seeking ethos (观念) of the textbook business, and are even harder for students to opt out of.

但批评人士说，数字接入码代表着同样的营利精神(观念) 而对于学生来说，选择退出就更难了。

2018年6月四级真题（第三套）阅读 Section B

六级But others opted to lie, and they showed increased activity in their frontal parietal (颅腔壁的) control network, which is involved in difficult or complex thinking.

但其他人选择说谎，他们的额叶顶叶活动增加(颅腔壁的) 控制网络，涉及到困难或复杂的思维。

2019年12月六级真题（第一套）阅读 Section C

六级Morgan notified the Haslam administration of his decision to opt out in a letter sent last week.

摩根在上周发出的一封信中通知哈斯拉姆政府他决定退出。

2017年6月阅读原文

四级They found that the majority of both kids and adults opted for a half-sized portion when combined with a prize.

他们发现，无论是儿童还是成人，大多数人都会选择一半大小的食物作为奖品。

2016年12月阅读原文

高考Making things worse are state laws that make it too easy to opt out of what are supposed to be required vaccines for all children entering kindergarten.

更糟糕的是，州法律让所有进入幼儿园的儿童都很容易选择不接种本应接种的疫苗。

2017年高考英语北京卷 阅读理解 阅读C 原文

六级Haslam has said colleges would be free to opt in or out of the outsourcing plan, which has not been finalized.

哈斯拉姆曾表示，大学可以自由选择加入或退出外包计划，该计划尚未最终确定。

2017年6月阅读原文

四级When the mice were hungry, they opted to leave the company of other mice to go get food.

当老鼠饿了的时候，他们选择离开其他老鼠的陪伴去寻找食物。

2018年6月四级真题（第二套）听力 Section C

四级However, when the mice were well-fed but thirsty, they opted to drink, according to the study.

然而，根据这项研究，当老鼠吃得很饱但口渴时，他们选择喝水。

2018年6月四级真题（第二套）听力 Section C

四级"But because it's all digital it eliminates the used book market and eliminates any sharing and because homework and tests are through an access code, it eliminates any ability to opt out. "

“但因为它都是数字化的，它消除了二手书市场，消除了任何共享，因为家庭作业和考试都是通过访问码进行的，所以它消除了任何选择退出的能力。”

2018年6月大学英语四级真题（第1套)