The pressure cooker is very useful for people who go out all day.

压力锅对整天外出的人非常有用。

Garlic is very useful for your beauty.

大蒜对您的美丽是非常有用的。

The speaker provided a lot of tips on learning English, which were very useful for high school students.

演讲者提供了许多学习英语的小技巧，这对高中生来说很有用。

These plants are particularly useful for brightening up shady areas.

这些植物特别有助于让背光的地方明亮起来。

CT scans were mostly useful for detecting leakage of injectate, which may be the early phase of dislodgment.

CT 扫描对于检测注射液的泄漏最为有用，这可能是驱出的早期阶段。