We cannot proceed any further without receiving your thoughts with respect to the manner of payment.
我们如果不了解你们对付款方式的意见,便不能进一步检讨。
they can locate and steer clear of obstacles -- or locate flying insects on which they feed.
并能通过回声来确定并躲开障碍物,或找到它们赖以为生的昆虫。