bottomless
adj
1 very deep 极深的: a bottomless pit, gorge, etc 无底的深坑、峡谷等.
2 (fig 比喻) unlimited; inexhaustible 无限的; 无穷尽的
bottomless reserves of energy 取之不尽的能源.
🗣️ 情景例句
Thank you.
谢谢 。
There's a ten thirty flight in the morning.
早上10点半有班机。
but they do underline the general principle that the relationship between elephant and mahout is the key to successful training.