Elli's sign
[医] 艾利斯氏征(胸膜渗出液吸收时的浊音曲线)
🧩 词语组成解析
🗣️ 情景例句
Frank, you can learn as we go.
Frank，我们玩， 你跟着学。
I swear!
我发誓！
The lake was not a natural one, but a man-made reservoir.
这不是一个天然湖泊，是一座人工修建的水库。