Many air travellers suffer puffy ankles and feet during long flights.很多坐飞机出行的旅客在长途飞行中脚踝和脚会浮肿。His ankles were tied to the legs of the chair.他的脚脖子被绑在椅腿上。Do your ankles swell at night?...你夜里脚踝肿吗？When Mary sprained her ankle...
Ever tried. Ever failed. No matter. Try Again. Fail again. Fail better.努力过，失败过，没关系，屡战屡败，屡败屡战，每一次失败都比上一次更好。I have tried to pack a good deal into a few words.我尽量言简意赅。I tried to reach the foot brakes but I couldn't.我试图...
Its upper limit is determined by the conditions in the ionosphere.其上限由电离层的状态而决定.The ionosphere is a complex medium, which is aeolotropy, asymmetry, dispersive and changes randomly with time.电离层是随机时变, 各向异性, 非均匀 、 色散的复杂介质....