Heliography
n. 日光反射信号术, 反光通信法, 照相制版法
✅ 同义词
🗣️ 情景例句
What line of work are you in?
你做哪一行的？
The dogs bark, but the caravan goes on.
我行我素，岂管他哉。
and the existence of underwater features of considerable magnitude.
水下特征差异极大。