My confidence is still there and I'll just keep plugging away.我仍有信心，会继续坚持不懈。She keeps plugging away at French.她一直在拼命地学法语.We did not want people on the show who are purely interested in plugging a book or film.我们不想让那...
My confidence is still there and I'll just keep plugging away.我仍有信心，会继续坚持不懈。Study and Application of High Permeability, Macropore Path and Crack Properties Zone Plugging Agent - JTD.高渗透 、 大孔道、裂缝性地层堵水剂的研制与应用.We did n...