Heterodyne whistle
[电] 外差汽笛
🧩 词语组成解析
[电] 外差
whistle
['wɪsl]
vi. 吹口哨，吹哨子，鸣汽笛;呼啸;（动物）发出刺耳的叫声;吹口哨召唤;
vt. 由吹口哨而发出;吹口哨召唤;用哨声使…行动;
n. 口哨，哨子;汽笛;哨声，笛声;啭鸣声：尖厉高音;
🗣️ 情景例句
The new students seem to be shaping up quite nicely.
新生们看来表现得相当不错。
Where do you go to school?
你在哪里上学？
Yes, of course. It's very easy.
那当然。煮它（豆腐）并不难。