Watermarking
(watermark 的现在分词) n. 水位标志, 水印\\nvt. 印水印于
🗣️ 情景例句
I didn't have the heart to tell her that she was not chosen.
我没有勇气告诉她说她没有入选。
If it hadn't rained so hard yesterday, we would have played tennis.
如果昨天没下那么大的雨，我们就去打网球了。
I don't know. One, I think.
不知道，我想一岁。