Geobilan
六氯环已烷
🗣️ 情景例句
Please get me a cup of coffee.
请给我倒一杯咖啡。
Far from eye, far from heart.
离远而情疏。
The tunnel would be well-ventilated if tall chimneys were built above sea level.
隧道就具备了良好的通风条件。