back and forth 來來往往地、(前後)來回地。
bark at 狗朝著（對著）某人叫；對…狗吠。
be (good) value for money 物有所值。
be able to do 能夠……、有能力……。
be about to do when 就要做某事時，突然……。
擴展資料。
例句：
so energy can go back and forth
所以能量可以來來往往。
back and forth i went with the slides
於是，我就來來回回地放著幻燈片。
the buoy floated back and forth in the water
浮標在水裡漂來漂去。
dogs always bark at strangers
狗總是對著陌生人吠。
my neighbor's dog bark at me
鄰居的狗對我吠叫。
the pet doesn't bark at night
那寵物在夜裡不叫。
i'm afraid i won't be able to do that
恐怕我做不了這件事。
i need time to be able to do my homework
我需要時間來做作業。
what would you like to be able to do next
你下一步想做什麼？
bark at 狗朝著（對著）某人叫；對…狗吠。
be (good) value for money 物有所值。
be able to do 能夠……、有能力……。
be about to do when 就要做某事時，突然……。
擴展資料。
例句：
so energy can go back and forth
所以能量可以來來往往。
back and forth i went with the slides
於是，我就來來回回地放著幻燈片。
the buoy floated back and forth in the water
浮標在水裡漂來漂去。
dogs always bark at strangers
狗總是對著陌生人吠。
my neighbor's dog bark at me
鄰居的狗對我吠叫。
the pet doesn't bark at night
那寵物在夜裡不叫。
i'm afraid i won't be able to do that
恐怕我做不了這件事。
i need time to be able to do my homework
我需要時間來做作業。
what would you like to be able to do next
你下一步想做什麼？