Different studies have reported conflicting results. At least some of the confusion is due to the fact that researchers rarely test these substances in any standard way.
不同的研究得出了相矛盾的结果，但至少有些是因为研究者没有使用标准化手段进行测试。
2
At least one commentator was overcome with mock confusion.
至少有一位评论者在正话反说。
3
Guests at the hotel, including Britons, were moved from one place to another amid confusion as at least one explosion rocked the building after the initial gun attacks.