boring

1. 不用说，参加面试时应该穿上正式的衣服。
needless to say, one should dress neatly  when being interviewed for a job
2. 不用说，空着肚子劳动是很难的。
needless to say, it's difficult  to labor with an empty stomach
3. 不用说，启程旅行之前应该要先将车子加满油。
needless to say, we should fill up the gas tank before starting our trip