It's easy to make antenna smaller for working in high frequency, but rather hard to realize broadband.

在频段比较高的情况下，天线小型化相对比较容易实现，但要做到宽频带却很难。

youdao

There are no hard and fast rules, but rather traditional guidelines as to who pays for what.

关于谁来支付什么费用并没有一定要遵守的规定，只有传统的准则。

《柯林斯英汉双解大词典》

It's rather hard to deal with buttons, but I managed to do it: "Insert" is a right triangle, "Stop" - two vertical lines.

还有那些按钮也很难对付，但我还是搞明白了：“放入”键是个直角三角形，“停止”键是两条竖线。

youdao

A green energy incentive that relies not on tax money, but rather on ratepayer funds was pioneered in continental Europe, and is now getting a hard look in many countries around the world, including the United States.

VOA: standard.2010.03.23

Frost is not after "easy gold" but rather hard-earned wages.

弗罗斯特不追寻这些轻易得来的金钱而是实在地挣钱。

耶鲁公开课 - 现代诗歌课程节选

The man was no glad-hander but rather a hard-working, hard-drinking loner who worked himself into an early grave.

FORBES: Fact and Comment

This is hardly a new line of argument for Mr. Ryan, but rather is hard-wired in his philosophical circuits.

WSJ: Ryan Takes a Key Role on Immigration

What alarms Labour politicians is that voters appear to have stopped thinking of benefits as social security - something they pay into for use in hard times - but rather as a charity handout to the poor, and that this will fatally undermine the welfare state.

BBC: Political reporter, BBC News, in Manchester