The percentage doubles as they enter junior high, to 62 percent.

他们上了初、高中往后，有视力问题的学生所占比重翻番至62%。

youdao

In the United States, to enter junior high school was over, including grades 9 through 12.

在美国，初中学业一结束就进入高中，包括9到12年级。

youdao

My is 12 year old now, I'm Chinese, I have graduated from elementary school is about to enter junior high school.

我此时12岁，我是中国人，我从小学毕业即将进入初中。

youdao

Emma can enter our neighborhood junior high automatically, and most of her peers will do so.

CNN: ASIANOW - TIME Asia

Enter Maria Cantwell, the junior senator from Washington state.

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Enter sister Anna, a former junior national champion who had been quietly waiting in the wings.

CNN: Time trial wins for Hoy and Meares