Stagoscopy
液滴观测镜法
🗣️ 情景例句
Frank, you can learn as we go.
Frank，我们玩， 你跟着学。
Please estimate your living costs for this month.
请估计一下你这月的生活费用。
The swallow shares the virtues of both schools in highest measure.
燕子充分兼有这两类鸟的长处，