I wanted to, but Jack Davis needed a photographer.
我真的想參加上課, 但Jack Davis要我拍照。
This restaurant serves spaghetti, but not pizza.
這家餐廳做通心粉,但是沒有比薩餅。
There are even stories of half-trained elephant calves who have refused to feed and pined to death when by some unavoidable circumstance they have been deprived of their own trainer.