The Chlamydomonas are of particular interest because they exhibit phototaxis-an ability to orient themselves toward light sources to aid in photosynthesis.
对衣藻的关注是由于它具有趋光性——一种能够跟随光源定位自身以帮助光合作用的能力。
Furthermore, the birds orient themselves carefully with regard to the Sun and gently flap their wings to increase convection cooling.
此外，这些鸟会根据太阳的位置谨慎调整自己的方向，并轻轻拍打翅膀以增加对流的降温效果。
The mountaineers found it hard to orient themselves in the fog.
登山者在大雾中很难辨认方向。
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