However, this is not the only reason sometimes transmissionbreak down just because of poor design, or after being rebuilt by inexperienced technician.
然而，过热并不是变速器故障的唯一原因，有时变速器故障是由于设计缺陷，修理技师经验不足造成的。
2
Human-to-human transmission can easily occur, and pandemic will therefore break out.
很容易出现人际传播，而且会因此爆发大流行病。
3
The 27-year-old cosmonaut's mission lasted just 108 minutes and was fraught with drama: a break in data transmission, glitches involving antennas, a retrorocket and the separation of modules.