Hekou的用法和樣例：
例句
用作名詞 (n.)
- The Hekou and Zhenxing sites are the two richest in ancient remains unearthed for the construction of the Lianhua Power Station.
河口與振興是目前黑龍江省境內發掘的文化堆積較為豐富的兩個遺址。 - The paper discusses the environment protection and relevant comprehensive management of Hekou oil production plant in detail.
詳細論述了河口採油廠的環境保護以及相關的綜合治理措施。
