Etu
abbr. electron tube 电子管; ethylene thiourea 乙烯基尿素
🗣️ 情景例句
For example, did you know that 1 in 4 teenagers has tried marijuana?
比如，你是否知道4个青少年中就有1位曾经吸过大麻？
The industrial area is centered largely in the north.
那里的工业区大部分集中在北部。
What's the weather like in spring?
春季的天气怎么样？