Culdoscopy
后陷凹镜检查，后穹窿镜检查
🗣️ 情景例句
How long have you known her?
你认识她多久了？
Joy shared with others are more enjoyed.
与人同乐，其乐无穷。
Then see which plants grow higher, measure them with a ruler and write down your results.
过后看看哪种西红柿长得比较高，用尺子量量并记录下你的实验结果。