牢固: firm, secure...
恭敬: deferential, respectful...
跑车: racing bicycle, sporting bicycle, sports car, logging truck, on the job (of a train conductor)...
很难说: hard to say...
管: to take care (of), to control, to manage, to be in charge of, to look after, to run, to care about, tube, pipe, woodwind, classifier for tube-shaped objects, particle similar to in... construction...
雪山: snow-capped mountain...
灰心: to lose heart, to be discouraged...
妥当: appropriate, proper, ready...
