Sed
abbr. 航天工程文献（Space Engineering Document）；光谱能量分布（Spectral Energy Distribution）
🗣️ 情景例句
It's too close to the refreshments.
它离茶点太近了。
He likes playing ping-pong.
他喜欢去打乒乓球。
How are you getting on with your English lessons?
你的英语课学得怎么样了？