which we made clear at the beginning of the negotiation.
关于这一点,我们早在开始谈判时期就讲明了。
I have to become strong.
我必须庄敬自强。
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.