Thd
abbr. 双头龙（Two Heads Dragon）；总谐波失真（Total Harmonic Distortion）；螺纹（thread）
🗣️ 情景例句
One thing that makes it easier for you
有一件事可以使你作起决定来比较容易些
Cartons are seaworthy.
纸箱适合海运。
This is because the surface of the earth is not flat but round.
因为地球表面不是平的，而是圆的。