Marsh trefoil
睡菜
🧩 词语组成解析
marsh
[mɑrʃ]
n. 沼泽，湿地;
n. 车轴草, 三叶草\\n[医] 三叶草, 三叶豆
🗣️ 情景例句
Congratulations on your wedding.
祝贺你们的婚礼。
What platform does the train leave from?
这班车从哪个站台开出呢？
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。