But it turns out that fuel cells have three Achillesheels (see article).
但事实证明该电池有三个致命弱点。
2
Using MRI and ultrasound technology, researchers compared the calf muscles and Achilles tendons of women who frequently wear high heels with those of women who mainly wear flat shoes.
利用磁共振成像和超声波技术，研究人员比较了经常穿高跟鞋的女性与一般穿平底鞋的女性的小腿肌肉和跟腱。
3
Our completion rates are one of our greatest Achilles' heels.