nà / jià / zhí / shēng / jī / zài / shān / gǔ / shàng / kōng / xuán / huí / xún / zhǎo / hé / shì / de / jiàng / luò / dì / diǎn

那架直升机在山谷上空旋回，寻找合适的降落地点。

The helicopter circled above the valley, looking for a suitable place to land.