I have to lock in demand all the time.

一旦他们有需求，我必须随时待命。

And around the same time, demand for those microprocessors in consumer electronics went way up.

几乎与此同时，家用电器对微处理器的需求却直线攀升。

" Know you anything of your own family at that time" ? demanded the white.

“那时你知道你自己家里的任何事吗” ？ 白人问道。

Although rereading is relatively economical with respect to time demands when compared with other learning techniques, rereading is also typically much less effective.

尽管与其他学习技巧相比，重读在时间需求方面相对经济，但重读的效果通常也低得多。

At the same time, demand for housing has increased, as more locals and foreigners seek opportunities in the city each year.

与此同时，随着每年越来越多的本地人和外国人到这座城市寻找机会，对住房的需求也在增加。