You can also develop an algorithm that efficiently manages memory but USES a bit more memory.

也可以开发一个算法来有效地管理内存，但却要使用更多的内存。

youdao

Building good applications efficiently requires that we learn not only to use XML correctly, but that we learn also to use it well.

有效地构建良好的应用程序需要我们不仅学习如何正确地使用XML，还要学习如何将它用好。

youdao

The technology is not inherently frugal or green. It can be used to deliver not just clean renewable energy more efficiently, but also the grubby coal-fired sort.

技术并非内在的就是节约和环保的，它不仅可以被用于更有效的传输清洁的可再生的能源，对于肮脏的燃煤火力发电也是一样。

youdao

But he noted it is also his job to ensure that these agencies work efficiently.

VOA: standard.2009.12.29

Those not only seek to run power lines more efficiently but they can also are equipped to perform outage management, allowing utilities to pinpoint problems and to quickly fix them.

FORBES: Upgrading the Grid by Going Underground

It must not only encourage new ideas but also evaluate them accurately in terms of potential value and then implement them efficiently, with in-house methodologies that provide a wide scope for creative thinking but also ensure that creativity is grounded in real market trends and can deliver measurable results.

FORBES: Why Chip Makers Must Keep Innovating

But getting on and off public transport efficiently is also very much about state of mind, not just the physical.

BBC: Who, what, why: How to get off a busy train