No one knows for certain what happened, but it's a fair bet that it was not an accident.
沒有人知道究竟發生了什么,但幾乎可以肯定這并非意外。
The woman kept as near as she could to the children and even tried to get into the case herself, but it was too small.
這位婦女盡可能地靠近孩子,甚至自己也想鉆進箱子里去,只是箱子太小了。