Heliometry
量日仪测量术
🗣️ 情景例句
He'll do anything to avoid getting down to math lessons,
他老是设法想逃避数学，
You have also made some readjustment in your import and export business, have you?
你们的进出口贸易也有一些调整，对吗？
The box is heavy. Can you carry it?
这个箱子很重，你能搬动吗？