To release CO2 gas, often associated with pollution and climate change.
发光
To produce and send out light.
产生并发出光线。
排放气体
To release a substance in a form that is not solid or liquid.
发射辐射
To release energy in the form of waves or particles.
发出辐射。
发射信号
To send out a signal for communication.
发出信号，如光或声音。
排放污染物
To release substances that make air, water, or soil dangerously dirty.
发出污染物，尤指气体或辐射。
排放污染
To release harmful materials into the environment.
向空气中释放污染
发出声音
To make or produce a sound.
产生并发出声音（常用于物体或动物）。
散发烟雾
To release the visible vapor and gases given off by a burning substance.
发出或释放烟雾（更正式）
散发烟雾
To release strong, often unpleasant or harmful gas or smoke.
向空气中排放烟雾（常用于机器/工厂）。
发出噪音
To produce a sound, especially an unpleasant or loud one.
产生声音，尤其是不悦耳或响亮的声音。
发射波
To send out energy that travels in a wave pattern, like sound or light.
发出以波形传播的能量，如声波或光波。
发出闪光
To produce a sudden, bright burst of light.
产生或发出闪光。
散发气味
To give off a particular smell, especially an unpleasant one.
发出或散发出一种气味
迸发火花
To produce a very small flash of light, often from electricity or fire.
产生非常小的闪光，通常由电或火引起。
To send out a focused line of light or energy.
散发蒸汽
To release a substance diffused or suspended in the air, e.g., steam.
释放或排出蒸汽，常用于技术或正式语境。
发射光线
To send out a narrow line of light or radiation.
喷出一股（...）
To send out a continuous flow of something (e.g., liquid, particles).
发出连续的某物流（例如液体、粒子）。
发出尖叫
To make a loud, high-pitched cry due to fear, pain, or excitement.
发出或放出尖叫声（更正式）。
发出尖叫
To make a very loud, high-pitched scream.
发出呻吟
To make a deep, long sound showing pain, sadness, or disapproval.
发出呻吟声
发出呻吟
To make a long, low sound of physical or mental suffering.
发出表示身体或精神痛苦的长而低的声音。
发出咕噜声
To make a low, bubbling sound.
发出咕噜声（较正式）
To give off a distinctive quality or feeling.