Tree-creeper
n. 旋木雀
🧩 词语组成解析
tree
[tri]
n. 树;木料;树状图;宗谱;
vt. 把…赶上树;使处于困境;把鞋型插入（鞋内）;
creeper
[['kri:pə]]
n. 爬行者
🗣️ 情景例句
That sounds pretty good.
听起来挺好的嘛！
There used to be a grocery store on the corner.
过去在角落上有一个杂货店。
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。