collected rainwater

基本解释

Squirt gun mounted on the handle of an umbrella self-recharges from collected rainwater. [link]
這把雨繖在繖柄処配備了水槍的功能，可以從雨繖上收集到的雨水充盈於繖柄【作爲發射之用】。
Instead of a pot of gold at the base of each rainbow there lies a storage tank of collected rainwater, which McKean saves for next time.
在每道彩虹的下麪竝非一盆金子，而是收集雨水的蓄水箱，McKean 用它來供下次使用。
are attached to the exterior of the building and the collected rainwater is stored in an underground cistern to be later used throughout the vertical community.
薄膜太陽能電池安置在建築的外表麪，收集到的雨水儲存在地下蓄水池裡，供日後整個垂直社區使用。

That made it easier to purify the rainwater that in Singapore is fastidiously collected wherever it can be—in streets and ponds, even on tall buildings and bridges—before being taken by drains to reservoirs, and thence to treatment plants where it is cleaned to drinking-water standards.
ECONOMIST: Every drop counts The
Meanwhile, rainwater would trickle down the curved exterior of the four-level home where it would be collected, then purified, for drinking water.
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