It is a market where people can be very unprincipled and unpleasant.在这个市场里，一些人可能根本不讲道德原则，非常令人厌恶。...unprincipled opportunists and ambitious political adventurers.不择手段的机会主义者和野心勃勃的政治投机者Unprincipled accommodation will do har...
Draw the floss backwards and forwards between the teeth.将牙线在齿间来回拉动。He controlled the car until it was pointing forwards again.他稳住车子，直到它又朝前开去。He stood a few moments, rocking back and forwards on his heels.他站了一会儿，踮着脚跟前后摇晃。...
It causes blindness or serious loss of vision.这能导致失明或视力严重受损。Early diagnosis and treatment can usually prevent blindness.早期的诊断和治疗通常可以预防失明。I have long since come to terms with my blindness.我早就安于自己的失明了....