The skywalk is especially useful during the rainy season.

天桥在雨季特别有用。

The back vision mirror is especially useful when reversing.

后视镜在倒车时特别有用。

Mnemonics are especially useful for subjects that require memorization.

记忆术对需要记忆的科目特别有用。

It is especially useful for increasing flow of the lymphatic system.

她对促进淋巴系统的循环特别有效。

Rsync is especially useful for backups.

rsync 对于备份尤其有用。

Poisonous snakes are especially useful.

毒蛇是特别有用。

Especially useful if you have a large head!

这是非常有用处的，尤其如果阁下的头比较大！

Brown fat is especially useful when you're a baby.

棕色脂肪对婴儿作用比较大。

This new measure is what makes MACS especially useful.

这新的方式是什么让MACS尤其有用.

These pants were especially useful for miners in California.

这条裤子是在加利福尼亚州的矿工特别有用。