Double - buffering is a technique that mitigates the tearing problem somewhat, but not entirely.双倍缓冲一种用来减轻撕裂问题, 虽然不是很完全.Amino acids are weak acids and weak bases, therefore, they are excellent buffering agents.氨基酸是弱酸和弱碱,...
这包裹的封皮扯不开.The cover of the parcel won't tear.我廉价买下了它,因为它的封皮坏了.I got it cheaply as its cover was torn.赫伯尔特用铅笔在一本书的封皮里边写了些什么.Herbert had been writing with his pencil in the cover of a book....