Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
វដ្តទឹក
Yអ្នកប្រហែលគិតថា គ្រប់ដំណក់ទឹកភ្លៀងដែលធ្លាក់ពីលើមេឃ ឬទឹកដែលអ្នកហូបសុទ្ធតែជាដំណក់ទឹកដែលគេទើបបង្កើតថ្មី។ តែតាមពិតទៅ
Public Domain.