plow back

To reinvest (earnings or profits) in one's business.

再投資：把（所賺的錢或利潤）再投資于自己的事業(yè)中

plow into 【非正式用語】

To strike with force.

用力打

To undertake (a task, for example) with eagerness and vigor.

沖勁十足地工作：迫切而干勁十足地著手（如一項任務）

plow under

To cause to vanish under something piled up.

隱匿不見：使消失于被堆積起來的東西下面

To overwhelm, as with burdens.

擊潰，如用重擔