1、in efforts to努力；尽力做
They also announced plans to cooperate in efforts to fight climate change and develop clean forms of energy.
他们也宣布了合作计划，努力对抗气候变化并开发清洁能源的方法+%iV3eoj@XL~qa8)ui(0。

2、shut down停工；关闭
The aircraft will land safely, and could do so even with the engine shut down.
但不用担心，飞机仍将安全降落，甚至关闭引擎也能做到安全无比_rrgcCG-lE*6XI8]*rT。