He staggered back, breaking my grip effortlessly.

他摇摇晃晃地退开，毫不费力地挣脱了我的紧握。

Apply the opposite charge and the electrode flips back, breaking the circuit.

这样就会接通电路，打开晶体管。利用相反的电荷，电极就会复位，进而断开电路。

Building the Ledo road is back breaking-- far harder than Perry’s North Carolinian childhood of picking cotton in a sharecropping family.

修建 Ledo 路是一种倒退——比 Perry 在北卡罗来纳州的童年时代在一个佃农家庭里采摘棉花要困难得多。

Scarlett, standing in the sun in the cotton rows, her back breaking from the eternal bending and her hands roughened by the dry bolls, wished she had a sister who combined Suellen's energy and strength with Carreen's sweet disposition.

思嘉站在太阳下的棉田里，她已累得腰酸背痛，腰都直不起来，两只手也被棉桃磨粗了，真希望有个能把苏伦的精力和体力跟卡琳的温柔品性结合起来的妹妹埃因为卡琳摘得又卖力又认真，可是劳动一个小时之后就可以看出她（不是苏伦）实际上身体还没有全好，还不宜做这种活儿，结果思嘉只得把她也送回家去了。