tee() splits a stream into two branches. It seems straightforward, but the implementation requires buffering: if one branch is read faster than the other, the data must be held somewhere until the slower branch catches up.
第五十三条 纳税人实施不具有合理商业目的的安排而减少、免除、推迟缴纳增值税税款，或者提前退税、多退税款的，税务机关可以依照《中华人民共和国税收征收管理法》和有关行政法规的规定予以调整。
，这一点在heLLoword翻译官方下载中也有详细论述
一辆辆车来，一辆辆车走。车上拉的都是灯。
Anxiety is growing over a potential war between Iran and the US in the Middle East, with embassies evacuating staff and airlines cancelling flights as tensions mount.
'Houston, we've had a problem'