Radiofrequency
高週波
🗣️ 情景例句
for a long time,
很久了，
He is the wise man who is the honest man.
诚实的人就是聪明的人。
It is not uncommon to hear that a shipping company has made a claim for cost of salvaging a sunken ship.
航运公司为打捞沉船而提出索赔，这是常有的事，