他站在那里，头向后仰，衬托在蓝天下。

He stood there, head back, framed against the blue sky.

白雪覆盖的高山在蓝天的映衬下格外醒目。

The snow-capped mountain stood out in sharp relief against the blue sky.

到加拿大来享受蓝天碧野吧！

Come to Canada and enjoy the great outdoors.

乌云渐渐散开，露出了蓝天，这和她的情绪形成了鲜明的对照。

In sharp contrast to her mood, the clouds were breaking up to reveal a blue sky.

灰色的云团中透出一小片蓝天。

There was a small patch of blue in the grey clouds.

燕子在万里无云的蓝天飞翔。

There were swallows in the cloudless blue sky

一个个巨大的气球在头顶的蓝天中漂浮着。

Huge balloons bobbed about in the sky above

透过墙上的缝隙她可以看到一线蓝天。

Through a chink in the wall she could see a bit of the blue sky.

在蓝天的陪衬下，城堡显得轮廓分明。

The castle stood out in relief against the blue sky.