科学家们观测到了新的火山喷气孔，而且几个间歇喷泉增强了活性并提高了水温。
New fumaroles were observed, and several geysers showed enhanced activity and increasing water temperatures.
他建议为了增强意志力，间歇跑，坡道重复跑，和乳酸门槛跑，至少每周一次。
He recommends intervals, hill repetitions, and tempo runs at least once a week to build your mental muscle.
运动员们依靠间歇性训练来提高速度，增强力量，不过通常是作为内容更丰富的每周训练项目的一部分——后者还包括时间较长、强度较低的锻炼，比如长跑。
Athletes rely on intervals to improve their speed and power, but generally as part of a broader, weekly training program that also includes prolonged, less-intense workouts, such as long runs.
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