The tour guide warned travelers to stay behind the railing near the chasm.

導遊提醒旅客待在深谷旁的欄杆後方。

Engineers proposed building a bridge across the chasm to shorten the shipping route.

工程師提議在裂谷上方建橋，以縮短貨運路線。

Our brochure features a photo of hikers standing at the edge of a huge chasm.

我們的宣傳手冊上有一張健行者站在巨大深谷邊緣的照片。