我朋友请我临时看顾她6个月大的儿子。My friend asked me to babysit for her six-month-old son.我们相顾无言。We looked at each other in silence.他们看上去疲惫不堪，以至于顾不上太多。They look too wasted to care about much....
He pushed everyone full speed ahead until production hit a bottleneck.他催促所有人拼命干活，直到生产遭遇瓶颈。Hydrogen is used extensively in industry for the production of ammonia.氢气在工业上广泛用于制氨。Because of the slump in domestic demand, produ...