back and forth 来来往往地、(前后)来回地。
bark at 狗朝着（对着）某人叫；对…狗吠。
be (good) value for money 物有所值。
be able to do 能够……、有能力……。
be about to do when 就要做某事时，突然……。
扩展资料。
例句：
so energy can go back and forth
所以能量可以来来往往。
back and forth i went with the slides
于是，我就来来回回地放着幻灯片。
the buoy floated back and forth in the water
浮标在水里漂来漂去。
dogs always bark at strangers
狗总是对着陌生人吠。
my neighbor's dog bark at me
邻居的狗对我吠叫。
the pet doesn't bark at night
那宠物在夜里不叫。
i'm afraid i won't be able to do that
恐怕我做不了这件事。
i need time to be able to do my homework
我需要时间来做作业。
what would you like to be able to do next
你下一步想做什么？
bark at 狗朝着（对着）某人叫；对…狗吠。
be (good) value for money 物有所值。
be able to do 能够……、有能力……。
be about to do when 就要做某事时，突然……。
扩展资料。
例句：
so energy can go back and forth
所以能量可以来来往往。
back and forth i went with the slides
于是，我就来来回回地放着幻灯片。
the buoy floated back and forth in the water
浮标在水里漂来漂去。
dogs always bark at strangers
狗总是对着陌生人吠。
my neighbor's dog bark at me
邻居的狗对我吠叫。
the pet doesn't bark at night
那宠物在夜里不叫。
i'm afraid i won't be able to do that
恐怕我做不了这件事。
i need time to be able to do my homework
我需要时间来做作业。
what would you like to be able to do next
你下一步想做什么？