大家好，最近复习到as + adj. (+N.) as 的用法
想请教下列三句的 ［ ］ 部分，该怎么解释呢？
谢谢
1. The candidates are as busy [with their works] as bees are.
2. Passengers tongues won’t be as sensitive [to flavors] as they usually are.
-
3. Food doesn’t taste as salty [under noisy conditions] as it does.