英语语法分析

The Russian, Greek and Polish storks flew as far as South Africa, while those from Spain, Tunisia and Germany flew only as far as the Sahel.

俄罗斯、希腊和波兰的鹳鸟飞到了南非那么远的距离，而来自西班牙、突尼斯和德国的鹳鸟却只飞到了萨赫勒地区。

Landfill sites on the Iberian peninsula have long attracted local white storks, but all of the Spanish birds tagged in the study flew across the Sahara desert to the western Sahel.

伊比利亚半岛上的垃圾填埋场长期以来一直吸引着当地的白鹳，但研究中标记的所有西班牙鸟类都飞越了撒哈拉沙漠，来到了萨赫勒的西部地区。

Niger is located in the Sahel desert south of the Sahara.

尼日尔位于撒哈拉以南的萨赫勒地区。