Sightlessness
n. sightless的变形
✅ 同义词
🗣️ 情景例句
OK.
好。
I didn't know whether to send the letter airmail or not.
我不知道是否送航空邮件。
Its wool, which had been dyed black, had been washed clean by the rain!
原来羊毛上染的黑色被雨水冲掉了！