Flatline
n. （心脑电图呈现的）平线\\nvi. 死亡
🗣️ 情景例句
Don't talk so loud, you may be overheard.
别这么大声说话，别人会听见的。
How much is a round-trip ticket to Beijing?
一张到北京的来回票要多少钱？
Yes, good idea.
好主意呀。