wintertime

n.

冬季；

1. My feet get cold in the wintertime.
   在冬天，我的脚会觉得很冷。
2. In wintertime he will don a wet suit and go right on surfing.
   到冬季，他就穿上橡皮紧身衣去冲浪。

Wintertime vitamin D insufficiency is common in young Canadian women, and their vitamin D intake does not prevent it.
An observational study of the Northern Hemisphere wintertime circulation
Singular Value Decomposition of Wintertime Sea Surface Temperature and 500-mb Height Anomalies
Source apportionment of wintertime gas-phase and particle-phase air pollutants using organic compounds as tracers.
Cluster analysis of the Northern Hemisphere wintertime 500-hPa height field : Spatial patterns.
Influence of variations in extratropical wintertime teleconnections on northern hemisphere temperature
Interannual Variability of the Kuroshio Extension System and Its Impact on the Wintertime SST Field
Persistent Anomalies of the Extratropical Northern Hemisphere Wintertime Circulation: Geographical Distribution and Regional Persist...
Evaluation of the Potential for Wintertime Quantitative Precipitation Forecasting over Mountainous Terrain with an Explicit Cloud Mo...
Downscaling of Global Climate Change Estimates to Regional Scales: An Application to Iberian Rainfall in Wintertime