One-stepped
vi. 跳单步舞（one-step的过去式与过去分词形式）
🧩 词语组成解析
one
[wʌn]
num. （数字）一;一个;（基数）一，第一;
n. 一个人;一点钟;一体;独一;
pron. 一个人;任何人;本人，人家;东西;
adj. 某一个的;一体的;一方的;
v. 踏；行走（step的过去式和过去分词）
🗣️ 情景例句
and writing the background for Family Album,U.S.A.--
为Family Album,U.S.A.撰写背景说明的年轻人
In every beginning think of the end.
思前顾后。
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。