用旧报纸包裹邮包或者邮件，而不要用膜泡包裹邮件。

Stuff delicate postal packages with old newspapers or junk mail instead of bubble wrap.

youdao

对膜泡形状的研究在过去的20年里取得了较大的进展。

In the past 20 years, there is great progress on the vesicles shape research.

youdao

对膜泡形状的研究在过去的20年里取得了较大的进展。

In the past 20 years, there is great progress on the vesicles shape research.

youdao