Smokescreen
n. 烟幕, 掩盖某人真实意图的东西
🗣️ 情景例句
Oh, you're right.
哦， 说得对。
Can you tell me what time Mr. chen will be back ?
你能否告诉我陈先生何时会回来？
Once the existence of this wave-length had been discovered,
一旦这种波长的实际存在被发现，