And I will try to sketch you here what a curve of stress versus strain typically looks like.

我在这里画一张，关于压力和张力，关系的曲线。

youdao

Whatever the situation, it can place stress and strain on a relationship - you want to keep your boyfriend or girlfriend happy, but you don't want to compromise what you think is right.

不论是哪种情况都会给这段恋情带来压力和束缚——你想让你的男友或女友高兴，但在你认为对的事情上你又不愿意妥协。

youdao

To see what was going on, he labelled the doxycycline-resistant strain with a yellow protein and the sensitive strain with a blue protein.

为了观察进行情况，他用黄色蛋白质标记耐脱氧土霉素的大肠埃希菌，用蓝色的蛋白标记对脱氧土霉素敏感的细菌。

youdao

You haven't tried to run a house with tiresome servants and ailing children, and you don't realize what a strain it is at times, and how molehills become mountains, because there are so many of them piled on to each other.

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Within hours thousands of news services have been marking the geography of death and illness, pointing to an usually aggressive outbreak of what appears to be a rampant strain of E. coli.

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But there were four events left, each of which would put a terrible strain on what remained of his left biceps.

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