Each hyacinth flower has a little stalk of its own, by which it hangs from the main stem.

风信子的每一花朵都有一枝连接茎干的小花梗。

So we really want to perform that work when there are fewer species present in the main stem, and there is plenty of tributary access.

因此，我们计划在主流中的物种较少，支流通道中较多时进行这项工作。

We sifted along the main stem through the slacks and shorts and French sailor jerseys and knotted bandannas and knobby knees and scarlet lips.

我们沿着主干穿过休闲裤、短裤、法国水手球衣、打结的头巾、多节的膝盖和猩红色的嘴唇。

We're going to be listening to some far-reaching soundscape ecologies today from research that I've been conducting off of the main stem of the Amazon on the Peruvian border with Brazil.

今天我们将听到一些影响深远的音景生态研究我一直在秘鲁与巴西边境的亚马逊河主河道上进行的。