Answer:
我不完全了解原因，因为我是初学者，但似乎还可以
Wǒ bù wánquán liǎojiě yuányīn, yīnwèi wǒ shì chū xuézhě, dàn sìhū hái kěyǐ
对不起，浪费我的时间，我不明白
Duìbùqǐ, làngfèi wǒ de shíjiān, wǒ bù míngbái
i basically said sorry and you can translate the rest
There was a long line at the grocery store, and this was very inconvenient for the customers.
Because it displays the number of organisms at each tropic level.
座席を変更する that should be it
