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back-up safety device：后备安全设备

后备继电保护 back-up relaying | 后备安全设备 back-up safety device | 后备电源 back-up source

back-up safety device：备用安全设备,备用安全装置

back-up roll | 支撑轧辊,支撑辊 | back-up safety device | 备用安全设备,备用安全装置 | back-up source | 后备电源,备用电源

save up：节省

make up 化妆; 编造 | save up 节省 | eat up 吃光

run up a score：欠债

run up => 跑上去,跑过去 | run up a score => 欠债 | run up against => 意外地碰到(困难等)

screw up courage：鼓起勇气, 奋勇

muster up courage 鼓起勇气, 奋勇 | screw up courage 鼓起勇气, 奋勇 | summon up courage 鼓起勇气, 奋勇

see/hear sb. do sth：看见 / 听见某人做过某事

see / hear sb. doing sth. 看见 / 听见某人在做某事 | see / hear sb. do sth. 看见 / 听见某人做过某事 | pick up sth. / pick sth. up / pick it up 捡起,拾起

seize hurriedly;take or pick up suddenly;be dragged into：突然拿起;匆忙抓住;被抱進

You go on ahead;I'll catch you up in a few minute... | 2.seize hurriedly;take or pick up suddenly;be dragged into 突然拿起;匆忙抓住;被抱进 | He caught up the ball as it rolled along and threw it back.当...

set oneself up as sb：有"自认为、自称为"之意. 如

The manuscripts are already set up.手稿已经排好版. | 3.set oneself up as sb.有"自认为、自称为"之意. 如: | I've never set myself up as a scholar.我从未自称为学者.

set sth up：准备使用,确立

21 make sth. up:创造 | 24 set sth. up: 准备使用,确立 | 25 straighten sth. up: 收拾整洁

set up home with mistresses on the：在内地金屋藏娇

在楼宇外放置紧急逃生垫 set up emergency air | 在内地金屋藏娇 set up home with mistresses on the | 成立个体户 set up individually owned stores

Minstrel Show：化装黑人乐队的演出

show cause 提出正当理由 | minstrel show 化装黑人乐队的演出 | medicine show 走江湖卖药

punctual aspect：準時式;準時體;一次體

punched card 穿孔卡片 | punctual aspect 準時式;準時體;一次體 | punctuation 標點符號用法