also heeltap, 1680s, "one of the bits of leather that are stacked up to make a shoe heel" (see heel (n.1)); meaning "bit of liquor left in a glass or bottle" first recorded 1780s; the exact connection is uncertain unless it be "the last or final part."
双语例句
1. With a snarl, the second dog made a dive for his heel.
伴着一声嗥叫，第二只狗扑向了他的脚后跟。
来自柯林斯例句
2. Horton's Achilles heel was that he could not delegate.
霍顿的软肋在于他不懂得放权。
来自柯林斯例句
3. She snagged a heel on a root and tumbled to the ground.
