instrumental
adj.有帮助的(significant, useful)
obliging
adj.施恩的；愿帮忙的(helpful)
He was so thankful for the obliging hostess who took care of him when he was ill.
他非常感激那位在他生病时照顾他的好心女主人。
prop
n./vt.支持(support, mainstay)
Her daughter was the only pro to the old lady during her illness.
女儿是那位老太太生病期间唯一的支撑。
redress
n.救济
rescue
vt.拯救(save)
The firefighter rescued six people from the burning building.
消防队员从失火的建筑物中救出了六个人。
salvage
vt.(海上)救护，抢救(recover, rescue)
I was able to salvage some data from the ruined computer file.
我能从损坏的计算机文件中抢救出一些数据。
save
vt.拯救(rescue)
The doctors managed to save his life.
医生们设法救了他的命。
convoy
vt.护送(accompany, escort)
The army convoyed the supply trucks to the center of the battle.
军队把补给车护送到战争中心。
defend
vt.防护
escort
vt.护送(accompany)
A bodyguard escorted the celebrity around town.
一名保镖护送这位名人在镇上转悠。
preserve
vt.保存(keep, save, maintain)
Max eats only good things, hoping to preserve his health.
麦克斯只吃有益的东西，希望能保持健康。
retain
vt.保留(hold, reserve, withhold, keep)
We retained the original fireplace when we decorated the room.
我们装修房间时保留了原来的壁炉。
safeguard
vt.维护，保卫(protect)
We have found a way of safeguarding our money.
我们找到了保护我们的钱的方法。
shield
vt.庇护，保护(protect)
He shielded me by claiming that he broke the window.
他声称自己打破了窗户来维护我。
shelter
n.避难所；庇护物，遮蔽物 v.庇护，保护；遮挡
We took shelter from the storm in a bam.
我们在一辆汽车里躲避暴风雨。