断: Ⅰ动词1.(分成段) break; snap 短语和例子棍子断成两段。 the stick broke in two. 绳子断了。the string broke.树枝在积雪的重压下突然断了。the branch snapped under all that snow.2.(断绝;隔断) break off; cut off; stop 短语和例子断敌退路 cut off
Example Sentences:
1.
The biggest difference from the usual down bearing arch structure lies in this points that the four tectonic cracks on its two down beans ca n ' t constrain the level forces 它与常规的下承式拱架支承结构的最大区别在于它的两道下弦杆设置了四道断缝，从而使下弦杆失去对拱脚水平力的约束作用。
