4. Aunt Mary drives us all crazy with her instructions; she's an incurable backseat driver.
玛丽姑妈指来点去的,简直要把我们逼疯了。她瞎乱指挥的毛病真的无可救药了。
(backseat driver:后排座位上的司机,坐在后面喜欢告诉开车的人如何开车,意思就是指手划脚,乱提意见。)
5. She does not have to take a back seat to any singer of her time.
同任何一位同时代的歌唱家相比,她都毫不逊色。
(take a back seat:做在后排座位,喻指甘居人后,允许他人领先。)