What in the world did they think they were doing?
他們到底認為自己在做什么？
One major problem did present itself, though.
不過，確實出現了一個重大問題。
Someone might find out, and that would never do.
也許有人會發現，那是絕對不行的。
Only then did she realize the stress he was under.
直到那時她才意識到他所承受的壓力。
What sort of person would do a thing like that?
什么人會干那樣的事呢？