在你回答我之前，你必须仔细考虑一下这件事。

Before you reply to me, you must think it about carefully.

youdao

但是，在研究陆地工作之前，必须仔细考虑。

Before we go to work on land, however, we must think twice.

youdao

临床医生在开钙通道阻滞剂之前必须要仔细考虑好，并且确保这种药物在治疗一种心脏疾病的同时不会加重其它疾病的病情。

Clinicians should think carefully before prescribing calcium channel blockers and ensure that, in treating one heart condition, they aren't exacerbating others.

youdao