例句
There are several skimmers floating on the lake.
湖面上有几只撇油器漂浮着。
The skimmer is an important tool in the laboratory.
撇取器是实验室里的一个重要工具。
There are several skimmers floating on the lake.
湖面上有几只撇油器漂浮着。
The skimmer is an important tool in the laboratory.
撇取器是实验室里的一个重要工具。