leaden

adj.

铅（灰）色的；沉闷的；沉重的；郁郁不乐的

1. On leaden feet he made his way down the stairs.
   他拖着沉重的双腿走下楼去。
2. He left there with a leaden heart one hour ago.
   一个小时前，他怀着沉重的心情离开了那儿。
3. Suddenly,a leaden object jumped into his eyes.
   突然，一个深灰色的物体映入眼帘。

Dilute and Leaden, the p -Locus, Ruby-Eye, and Ruby-Eye-2
Dilute and Leaden, the p -Locus, Ruby-Eye, and Ruby-Eye-2
Linkage of loop-tail leaden splotch and fuzzy in the mouse
The linkage of polydactyly with leaden in the house-mouse
Partitioning of Parental Care in the Leaden Flycatcher
The leaden gene product is required with Rab27a to recruit myosin Va to melanosomes in melanocytes
Suggested nesting association between Leaden Flycatchers and Noisy Friarbirds
Melanophilin, the Product of the Leaden Locus, is Required for Targeting of Myosin‐Va to Melanosomes
Mutations in Mlph, encoding a member of the Rab effector family, cause the melanosome transport defects observed in leaden mice.
Lead free interfacial structures and their relationship to Au plating including accelerated thermal cycle testing of non-leaden BGA ...