rainwater

n.

雨水，软水；

1. The rainwater drips from the eaves.
   雨水从屋檐滴下。
2. This material is impervious to rainwater.
   这种材料防雨。

Variations in rainwater quality from roof catchments
Rainwater dissolved organic carbon: Concentrations and global flux
Rainwater harvesting, quality assessment and utilization in Kefalonia Island, Greece
A study of SO 2 oxidation in stored rainwater samples
Factors controlling the acidity of natural rainwater
H 2 O 2 levels in rainwater collected in south Florida and the Bahama Islands
Rainwater runoff quantity and quality performance from a greenroof: The effects of short-term events
Contamination of potable roof-collected rainwater in Auckland, New Zealand.
Analysis of a rainwater collection system for domestic water supply in Ringdansen, Norrköping, Sweden
Green roofs as a tool for solving the rainwater runoff problem in the urbanized 21st century?