1. You can see a couple of examples of the 先 / 再 construct in this lesson:
a. 为什么麦克不先告诉小李再去买戒指呢？
b. 嗯，所以他们应该先到别的地方旅行，再考虑要不要搬到那边住.
2. Notice the use of 掉 in 你会觉得他们之前在一起的时间都浪费掉了吗? You can think of its use here as meaning “losing wasted time”.
1. You can see a couple of examples of the 先 / 再 construct in this lesson:
a. 为什么麦克不先告诉小李再去买戒指呢？
b. 嗯，所以他们应该先到别的地方旅行，再考虑要不要搬到那边住.
2. Notice the use of 掉 in 你会觉得他们之前在一起的时间都浪费掉了吗? You can think of its use here as meaning “losing wasted time”.