On one side we have the testing fanatics, who want to test every single line of code they write.

一方面，存在测试妄想狂，他们希望能测试自己写的每一行代码。

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If the parting line cannot be on a single plane, then it is good practice to use symmetry of the design to minimize the side thrust forces.

如果分模面不能在单一平面，利用设计的对称性来减小侧向推力不失为一种好方法。

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The railway tracks join up into a single line on the other side of the town.

在城镇那边的几条铁道合为一条单线。

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And they expect Quad to become a widely used first-line therapy, since it consists of a single-tablet regimen and lacks neuropsychiatric side effects.

FORBES: Gilead Warned By Democrats Over 'Quad' Pricing