Please do not enter before knocking on the door.

进来前请先敲门。

youdao

In the Placement field, enter Before.

在Placement字段中，输入Before。

youdao

Before Marian could enter, however, a young white woman who worked in the school told her to go away.

VOA: special.2009.01.18

But before he can enter the city and meet Gilgamesh he has to be tamed.

但是在入城之前，他必须变得驯服。

耶鲁公开课 - 旧约导论课程节选

Some students work for a year or two in a medical or research job before they attempt to enter medical school.

VOA: special.2009.06.02

But I couldn't help the nagging feeling that her birthmark would always enter the room before she did.

CNN: My toddler had plastic surgery

One, in particular, made him feel the smart grid might even enter the home before the decade was out.

ECONOMIST: The much-talked-of smart grid prepares to enter the home

Once on an EHR, doctors confront a fairly rigid system, which requires them, for example to enter an appointment before creating a note.

FORBES: Is There Room For Another Electronic Health Record? ElationEMR Thinks So