Devoiced
a. 清音化的\\nvt. 使清音化（devoice的过去式及过去分词）
🗣️ 情景例句
I've been wanting to meet you for some time.
很久以来我一直想见你。
Courtesy costs nothing.
谦虚恭敬，不用分文。
I hope I haven't failed.
我希望别不及格。