He keeps silence, and breaking silent only pattern is piping, if if appeal to, be complained, and look in me, this became the symbol of not attend to one's proper works or duties again.

他保持沉默，而打破沉默的惟一方式便是吹笛，如怨如诉，而在我看来，这又成了不务正业的标志。

youdao

He described mining hydrothermal vents as "more invasive" because it would involve breaking up the uppermost metre of the sea floor and piping the rock fragments to the surface.

BBC: UK Seabed Resources joins deep-ocean mineral-mining rush