===== Channel =====

==== What is it? ====
A channel is a typed conduit for sending and receiving values between goroutines. It helps coordinate and synchronize concurrent work.

==== What is it used for? ====
  * Pass data safely between goroutines.
  * Avoid complicated shared-memory locking.

==== Example ====
<code go>
package main

import "fmt"

func main() {
    ch := make(chan int)

    go func() {
        ch <- 10 // send
    }()

    v := <-ch // receive
    fmt.Println(v)
}
</code>

==== Hard words (English) ====
  * **conduit** /ˈkɑːnduɪt/: “ống dẫn”/kênh truyền
  * **coordinate** /koʊˈɔːrdɪneɪt/: điều phối
  * **synchronize** /ˈsɪŋkrənaɪz/: đồng bộ
  * **shared memory** /ʃerd ˈmeməri/: bộ nhớ dùng chung
  * **locking** /ˈlɑːkɪŋ/: khóa (để tránh race)