xiān ná zhèxiē dānzi qù jiāoqián ,ránhòu qù B chāo shì wàimian děng ba 。chúle B chāo ,háiyǒu xiē biéde jiǎnchá 。
First, take these forms and go pay your bill. Then go wait outside the ultrasound room. In addition to the ultrasound, we need to do a few other tests.