The engine is letting off steam to relieve the pressure in the boiler.
机车在放蒸汽, 以减少锅炉。
He let off steam by yelling at a clerk.
他对一个职员大喊大叫, 借以发泄怒。
The janitor let off some steam because the pressure was too high.
锅炉工把蒸汽放走了一点,因为力过高。
They let off their guns at the British ships.
他对英国船舶开炮。
He lets off steam by going to the gym after work.
他下班后去体育馆锻炼，以舒缓力。
A bowman can let off six aimed shots in a minute, an arquebusier only one in two or three minutes, when he has gone through all his manual exercise carefully.
。
对英国船舶
次，而一名火绳枪手只能每两三分钟
观点；若发现问题，欢迎向我
指正。
