“划线”造句

你可以在空白纸上划线以便写字.
You can line blank paper for writing.

这个方法以后就称为分离细菌的划线法.
This became known as the streak method for isolating bacteria.

把那一栏用尺划线隔开, 我们把帐结算到那天为止.
Rule off that column. We'll close the account at that date.