Until now most of the debate about such matters has concentrated on Japan, where the working-age population has already begun to fall.

到现在为止，有关老龄问题的讨论更多关注了日本，该国的劳动力人口已经开始下降。

youdao

Attention concentrated on the possible fall of a sports idol and its effects on a great institution.

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Those parts of a statute most difficult to enforce, whether because they are expensive or because they lack a concentrated interest group as champion, will be the parts that fall into disuse.

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It is on course to fall below 50% within a decade, with a disproportionate chunk of those sales concentrated in the mid-west.

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