太空人與在太空中說話的挑戰
Astronauts and the challenges of speaking in space
雖然聲音無法透過外太空的虛無傳播，但太空人在國際太空站的加壓環境中卻能輕鬆交流。
While sound cannot travel through the emptiness of outer space, astronauts communicate easily inside the pressurized environment of the International Space Station.
然而，在進行艙外活動(E-V-A)，即所謂的太空漫步時，情況就變得棘手。
However, things get complicated during an Extravehicular Activity, or a space walk.
在太空服內，維持生命的風扇與幫浦會造成持續且震耳欲聾的噪音。
Inside a spacesuit, life-support fans and pumps create constant, deafening noise.
為了確保通訊清晰，工程師使用放在太空人嘴邊的專用麥克風來過濾機械的嗡嗡聲。
To ensure clear communication, engineers use specialized microphones placed close to the astronaut's mouth to filter out mechanical drones.
微重力會導致體液向頭部移動，這常導致鼻塞，進而細微地改變太空人的聲音。
Microgravity causes fluids to shift toward the head, often leading to nasal congestion that can subtly alter the sound of an astronaut's voice.
因為太空與地球之間的無線電訊號可能會因距離與干擾而失真，機組人員倚賴著「國際太空站英語」，這是一種簡化且訓練有素的語言版本。
Because radio signals between space and Earth can be distorted by distance and interference, crews rely on 'International Space Station English,' a simplified, disciplined version of the language.
