杰西抄近道穿过停车场,漫步通过大门。
Jesse cut across the parking lot and strolled through the main entrance.
船只在这堵墙下通过一条隧道,然后穿过水闸,最后到达联合运河。
Boats travel under this wall via a tunnel, then through the locks, and finally on to the Union Canal.
一家品牌店因其独特的香味而出名,这种香味通过制作香味的机器穿过漆黑的大厅,飘到门口。
A brand store has become famous for its distinctive scent which floats through the fairly dark hall and out to the entrance, via scent machines.
In the presence of this ligand, this molecule, it's open, it allows transport of this ion, when the ligand is gone it doesn't.
配体存在的情况下通道才打开,允许这些离子穿过,配体离开后,这些离子就不能通过了
And that's all that's big enough to pass through or small enough to pass through. And if we go up even just one row on the periodic table to potassium, what we actually see is now that it's going to be too large, and, in fact, a potassium solvated with one water molecule won't go through our channel.
就是这样刚好大到它通过,或者说刚好小到它通过,即使我们再沿着周期表往下走仅仅一行到钾离子,我们看到的就将是它的个头太大了,实际上,溶解于一个水分子的单个钾离子,不能穿过我们的通道。
Because these molecules can span across the membrane from outside to inside, they're in just the right position to take messages that they receive from outside the cell and transmit them through the membrane into the cells internal apparatus, and that's what they do.
因为这些分子能穿过细胞膜,连通细胞内外,它们所在的位置非常适于接受信息,它们能将外界获得的信息,通过细胞膜传递给细胞器,这正是它们的功能
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