认错: to admit an error, to acknowledge one's mistake...
注视: to watch attentively, to gaze at...
熬夜: to stay up late or all night...
测试: to test (machinery etc), to test (students), test, quiz, exam, beta (software)...
借口: to use as an excuse, on the pretext, excuse, pretext...
一无所有: not having anything at all (idiom); utterly lacking, without two sticks to rub together...
罪魁祸首: criminal ringleader, main offender (idiom); main culprit, main cause of a disaster...
基础: base, foundation, basis, underlying...
独家: exclusive...