Galella
[人名] 加莱拉
🗣️ 情景例句
How old are you, Albert?
几岁啦， Albert？
How much should people demand of their governments?
国民对其政府应该要求多少呢？
and by measuring the time interval between the taps and the receipt of the echoes, the depth of the sea at that point can be calculated.
测出回声间隔的时间，便可算出该处海洋的深度。