1.productively 有成果地
The company is certain to reinvest its profits productively.
公司肯定会将它的利润进行高效益的再投资 。
2.sustain 维持
The love and support of his family sustained him during his time in prison.
家人的关爱和支持帮助他度过了狱中的岁月 。
3.efficiency效率
I was impressed by the efficiency with which she handled the crisis.
她应对危机效率之高给我留下了深刻的印象 。
4.extant 现存的
Two fourteenth-century manuscripts of this text are still extant
这个文本仍有两份14世纪手抄本存世 。