Clapped rod
[电] 铃锤柄
🧩 词语组成解析
v. 拍手( clap的过去式和过去分词 ); （常指友好地）轻拍某人的背（或肩）; 急速放置
rod
[rɑd]
n. 杆，拉杆;惩罚，体罚;（责打人用的）棍棒;手枪;
🗣️ 情景例句
Which newspaper do you read?
你看哪种报纸？
His friend was injured in an airplane crash.
他的朋友在飞机碰撞中受伤。
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。