lack of gear

缺少装备

back gear───后倒齿轮；慢盘齿轮；[机]背齿轮

lack of clarity───不清晰

out of gear───失常；齿轮脱开；不工作的

lack of concern───不关心

lack of control───缺乏控制

back gears───后倒齿轮；慢盘齿轮；[机]背齿轮

back order───延期交货；未付清订货

black bear───（北美，亚洲）黑熊

face gear───[机]平面齿轮；半轴齿轮

Many climbers leave their gear and trash behind as they descend due to exhaustion and lack of oxygen.───很多登山者由于体力不支和缺氧，在下山途中就将一些器具和垃圾丢在了山上。

Many climbers leave their gear and trash behind as they descend due to exhaustion and lack of oxygen。───人需要感情，而缺乏温情和爱的生活，不过是没上油的齿轮，只能发生吱吱咯咯的噪音。