swimming前面加介词in
例句
1.
The barriers are lethal to fish trying to swim upstream.
这些障碍物对于想要往上游游动的鱼儿来说是致命的。
2.
For example, if a shark stops swimming, it will sink.
例如，如果一条鲨鱼停止游动，它就会下沉。
3.
During the entire swim even well below the surface
游动虽然是在水面下进行
swimming前面加go意思为去游泳
