然而，借助这项新的检测方法，医生们可以使一些潜在的患者免于化疗，免受其一贯毒副作用的痛苦。

With the new screening test, however, doctors can now potentially spare some patients chemotherapy and exposure to its often toxic side effects.

youdao

借助于好友名单，孩子们可以查看他们的朋友是否在线、迅速发送电子邮件，或转到他们“好友的”网页。

Buddy lists let kids see when their friends are on line and allow them to quickly send email or navigate to their "buddy's" web page.

youdao