When a student from a warm country like Vietnam comes to Canada in the autumn for the first time, he feels cold at first.

当一个来自像越南这样温暖的国家的学生在秋天第一次到加拿大时，他首先感觉到寒冷。

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First of all we must note that the first mention we have of this story comes approximately four hundred years after the supposed event.

首先我们得注意到，首次提到此事的时间，是在假定此事为真的情况下的进四百年之后。

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You define the SOUTH (button) panel first, because a DockPanel is first come, first served when it comes to claiming corner space.

首先要定义南侧（按钮）面板，因为在请求角落处时，DockPanel 是最先出现、最先被服务的。

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The first Rockwell work Spielberg ever bought is a nineteen twenty-two painting called "And Daniel Boone Comes to Life on the Underwood Portable."

VOA: special.2010.09.20

That's just the simple sequential sense of "first," the first that comes before second, third and fourth; but there's something more radical here than the ordinal or sequential sense of "first."

这只是“先“表示顺序的简单含义,先于第二，第三，第四的那个“先“，但这里,“先“除了表示顺序的意思外还有更激进的含义“

耶鲁公开课 - 弥尔顿课程节选

Think about the fix, don't make the first change that comes to mind and see if it works.

好好考虑要做什么修改,别抱着试试的态度直接实施。

麻省理工公开课 - 计算机科学及编程导论课程节选

There's an old debate: Whether academic training comes first or release of imagination comes first.

FORBES: Why not a sonnet?

A. In addition to the coverage provided under the existing Nissan New Electric Vehicle Limited Warranty, this expanded warranty applicable to LEAF vehicles in the United States will protect against capacity loss in LEAF batteries that falls below nine bars, of the available 12 bars displayed on the vehicle's battery capacity gauge, for the first 5 years or 60, 000 miles, whichever comes first.

ENGADGET: Nissan upgrades US Leaf warranties, will 'restore' batteries that lose too much charge

Under an expanded New Electric Vehicle Limited Warranty, Nissan will protect against capacity loss in LEAF batteries that fall below nine bars, of the available 12 bars displayed on the vehicle's battery capacity gauge, for the first five years or 60, 000 miles in the United States, whichever comes first.

ENGADGET: Nissan upgrades US Leaf warranties, will 'restore' batteries that lose too much charge