にあって means "in" a situation, a period or a position, and stresses that the situation matters to what follows. It follows a noun such as , , or , and it belongs to formal writing and speeches.
、。
In an emergency, he responded calmly.
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In such difficult circumstances, we must unite.
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In modern society, information literacy is becoming ever more important.
The situation is often a hard one, and the second half says what someone did in it – sometimes against the odds.
、。
In a recession, this company keeps growing.
A position works the same way: being in it brings duties or limits.
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In the position of leader, you should act responsibly.
にあっても
With the pattern becomes "even in": the situation does not change what follows.
、。
Whatever adversity you face, you must not give up hope.
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Whatever the situation, she never forgets to smile.
にあって or において
is the neutral formal "in" for a place, a time or a field: 会議において, 日本において. にあって puts weight on the circumstances themselves, so it goes with words for a state or a period rather than with a plain place. In conversation,
or
does the job.
。
The conference was held in Tokyo.