Hitab
噪声和背景信号的测定靶
🗣️ 情景例句
What did you do?
那你们怎么办呢？
The first step to virtue is to abstain from vice.
避开作恶是走向美德的第一步。
Who was first? Who was second? Who was third?
谁是第一？谁是第二？谁是第三？