I never go anywhere without my Lactaid, fast acting lactase enzyme.

- 如果没有我的 Lactaid，速效乳糖酶，我绝不会去任何地方。

These cooling effects are global and fast acting— but they're also incredibly risky.

这些降温效应是全球性的，而且作用迅速——但它们也具有难以置信的风险。

] LATIF: Insulin that could possibly be way faster acting than the one we use now.

] LATIF：胰岛素的作用可能比我们现在使用的更快。

But by around 1880, doctors began to realize that nitroglycerine was even more effective and faster acting for heart problems than amyl nitrite.

但是到了 1880 年左右，医生们开始意识到，硝酸甘油比亚硝酸戊酯对心脏病的疗效更有效、作用更快。