1·On the contrary, it helps farmers and improves forest soils.
相反，它可以帮助农民并改善森林土壤。
2·In its statement the association, known as BALPA, warns that unless safety improves, travellers face a perilous future.
BALPA 协会在它的声明中警告说，除非安全措施得到改善，否则旅行者的未来将十分危险。
3·Teamwork improves with time: America's National Transportation Safety Board found that 73% of the incidents in its civil-aviation database occurred on a crew's first day of flying together.
团队合作会随时间推移而改善：美国国家运输安全委员会发现，其民用航空数据库中，73%的事故发生在机组人员一起飞行的第一天。
4·It improves their mood considerably.
这会大大改善他们的情绪。
5·The inflatable dam improves the ability to deliver water.
充气坝改善送水能力。