before top dead center
在上死点前在上止点前
before bottom center
下死点前在下止点前
after top center
上死点后在上止点后
He was last seen leaving his office in New Town at about7 p. m.
他死前最后离开的地点位于新市区的办公室，大约晚上7点。
Nearly Headless Nick's cake indicated that he had died five hundred years ago, which was1492.
差点没头的尼克的生日蛋糕上写着他死于500年前，也就是1492年。
The trailing edge of the fourth notch, which causes the pulse, is four degrees before top dead center (TDC) of the corresponding piston.
产生的脉冲的第四凹槽的后缘，位于相应的活塞在前上死点（TDC）4度的位置的位置上。
I' m at work by 8 a. m.
我上午八点以前上班。
Ben Rosseli, in the coffin up ahead, was better off than Celia because his life had ended conclusively
躺在前面棺材里的班·罗塞利死得至少干脆爽快，从这一点上说，他比西莉亚走运。
He lit up before speaking.
他说话前点上了烟。
The teacher calls over the children's names before the class begins.
教师在上课前点名。
a convict awaiting execution is allowed to drink before going to the block
死囚在上断头台前被允许喝酒。
He nearly died of exposure on the cold mountain.
他在寒冷的高山上差一点没有冻死。
The bead is put on the foreheads of the dead shepherd ahead of the herd.
珠子被戴在牧群前面的死牧羊人的前额上.
at nine o'clock. I must go to bed before half past ten tonight.
9 点。我今晚必须在10 点半前上床睡觉。
Roll call time 22:00 at night.
睡前点名。点名时间，晚上22:00。
The snake fell from the ledge and scared me nearly dead, but it was the one that was dead.
蛇从壁架上掉下来，差一点把我吓死，但是它只不过是那条死蛇。
Technically, Captain, Protoculture isn't" fired up".
上校，史前文化技术上不能“点火”。
That thunderstorm the other night frightened little Tom half to death.
前两天晚上的那场雷雨把小汤姆吓得半死。