The central focus point is more accurate/sensitive in many cameras, and so it is best to use this (instead of the outer focus points) — even if using it requires having to recompose afterwards.

中心对焦对许多相机而言更为精确敏感，所以最好使用中心对焦而不是外部对焦——即便对焦后需要重新调整稳定。

youdao

All that carbon and oxygen — byproducts of the helium fusion process — build up in its core. At that point the star will shed its outer layers and the core will form a White Dwarf.

所有氦聚变中的附产物碳和氧在它的核心逐渐积聚，这期间它将失掉较外层物质，核心最终枯萎成为白矮星。

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Most antibiotics directly attack the microbes that make us ill. Penicillin, for example, weakens bugs' tough outer wall to the point that many of them simply explode.

大多数的抗生素直接攻击使我们致病的细菌，比方说盘尼西林，能使细菌的坚韧的细胞外壁软化到一定程度，然后使它们中的大多数简单地胀爆死掉。

youdao

Among other effects, it is believed to contribute to correcting the non-vertex presentation of the fetus when applied at a specific acupuncture point (BL67 Zhiyin) located at the outer corner of the little toenail.

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