If you feel in any way unsatisfied, please just give me a call.
如果你觉得有任何不满意的地方,请给我电话。
Karl must concentrate on his work.
卡尔必须集中精力于自己的工作。
Apparently what happened was that water collected on these tar pits, and the bigger animals like the elephants ventured out on to the apparently firm surface to drink, and were promptly bogged in the tar.