美 英 un.往复运动 网络来回运动 英汉 网络释义 un. 1. 往复运动 例句
"Back and forth" 还可以表示时间上的波动或变动,指事物在两个状态之间不断变化。 例句9:- The stock prices wentback and forththroughout the day, reflecting uncertainty in the market. - 股价在一天之内不断波动,反映出市场的不确定性。 例句10:- The weather has been goingback and forthbetween sunny...
题干关键词是body’s back and forth motion和much potential energy。G段提到During me body’s back and forth motion.fibers along the outside part of the bending body stretch greatly.Much potential energy is stored in the fibers.与题干吻合,故选G。
在表示时间上的波动或变动时，"back and forth" 可以描述事物在两个状态间不断变化。例9："The stock prices went back and forth throughout the day, reflecting uncertainty in the market." 指股价在一天内不断波动，反映市场的不确定性。例10："The weather has been going back and forth be...
- The ball bounced back and forth between the two players.(球在两个球员之间来回弹跳。) 2.形容词:用来修饰名词,表示事物具有来回或反复的特征。例如: - The back-and-forth motion of the pendulum keeps the clock running.(钟摆的来回运动使钟持续运行。) 3.介词短语:用来修饰名词或代词,表示事物在两...
back-and-forthadj(movement: to and fro)SCSimplified Chinese来回的 TCTraditional Chinese來回的 备注: Hyphens are used when the term is an adjective. It is relaxing to sit on the beach and watch the back-and-forth motion of the waves. ...
The slightback and forthmotion sent a pounding surge of pain into his skull. 轻微的前后晃动让他的脑袋感到一阵剧烈的疼痛。 柯林斯例句 The prosecution and defense were bandying accusationsback and forth. 原告和被告你来我往,互相指责。 柯林斯例句 ...
Back and Forth Motion Lots of objects go back and forth; that is, they move along a line first in one direction, then move back the other way. An oscillating pendulum or a ball tossed vertically into the air are examples of things that go back and forth. Graphs of the positionvs.time...
Again make sure to clean the teeth in the backof your mouth as well.Use a gentle back-and-forth motion to clean thetops of your teeth where you bite into food.Don't forget to gently brush the top of your tonguefrom back to front. A lot of germs(细菌) live there.根据短文内容,完成...
The back and forth motion of a pendulum is called oscillatory motion, or oscillation. The term oscillation can be used to describe other objects as... Learn more about this topic: Oscillations in Physics Activities from Chapter 6/ Lesson 38 ...