hoary

adj.

（尤指毛发）因年老而变灰或变白的；古老的，陈旧的；灰白；

1. His hoary hair showed his age.
   他的花白的头发显示出了他的年龄。
2. The hoary peasant mused over his past sufferings.
   这位白发的农民默想着他过去所受的苦难。
3. He told us a hoary old joke that we'd all heard many times before.
   他给我们讲了一个我们都听了很多次的老掉牙的笑话。
4. They discussed the hoary old problem.
   他们讨论老问题。

Seasonal Distribution of the Hoary Bat
Seasonal Distribution of the Hoary Bat in Southern California
Variation in the echolocation calls of the hoary bat (Lasiurus cinereu...
POST-NATAL GROWTH AND BREEDING BIOLOGY OF THE HOARY BAT (LASIURUS CINEREUS)
Differential Use of Some Coniferous Forest Habitats by Hoary and Silver-Haired Bats in Oregon
Autumn Mating and Likely Resorption of an Embryo by a Hoary Bat, Lasiurus cinereus (Chiroptera: Vespertilionidae)
The effect of reproductive condition on the foraging behavior of female hoary bats, Lasiurus cinereus
Physiological and Ecological Aspects of Roost Selection by Reproductive Female Hoary Bats (Lasiurus cinereus)
Long- versus short-range foraging strategies of hoary ( Lasiurus cinereus ) and silver-haired ( Lasionycteris noctivagans ) bats and...
The echolocation calls of hoary (Lasiurus cinereus) and silver-haired (Lasionycteris noctivagans) bats as adaptations for long- vers...