spar是什么意思_spar怎么读_中英文释义(含例句用法)

spar (n.1): early 14c., "rafter;" late 14c., "stout pole," from or cognate with Middle Low German or Middle Dutch sparre, from Proto-Germanic *sparron (cognates: Old English *spere "spear, lance," Old Norse sperra "rafter, beam," German Sparren "spar, rafter"), from PIE root *sper- (1) "spear, pole" (see spear (n.1)). Nautical use, in reference to one used as a mast, yard, boom, etc., dates from 1630s. Also borrowed in Old French as esparre, which might be the direct source of the English word.
spar (v): late 14c., "go quickly, rush, dart, spring;" c. 1400, "to strike or thrust," perhaps from Middle French esparer "to kick" (Modern French éparer), from Italian sparare "to fling," from Latin ex- (see ex-) + parare "make ready, prepare," hence "ward off, parry" (see pare). Etymologists consider a connection with spur unlikely. Used in 17c. in reference to preliminary actions in a cock fight; figurative sense of "to dispute, bandy with words" is from 1690s. Extension to humans, in a literal sense, with meaning "to engage in or practice boxing" is attested from 1755. Related: Sparred; sparring.
spar (n.2): "crystalline mineral that breaks easily into fragments with smooth surfaces," 1580s, from Low German Spar, from Middle Low German *spar, *sper, cognate with Old English spær- in spærstan "gypsum."

词态变化

复数 spars;
第三人称单数 spars;
过去式 sparred;
过去分词 sparred;
现在分词 sparring;

2. The mast, which was a solid spruce spar, bent like a bow, and for a moment I thought we were going to lose it.: 坚固的云杉木做成的桅杆已经弯得像一把弓，那一刻我觉得它马上就要断了。

3. We can be conviniently studied with reference to a crystal of calcite or Iceland spar.: 我们可以很方便地以方解石或冰洲石晶体来进行研究.

4. Mr Obama and John McCain continued to spar over foreign policy.: 奥巴马和约翰?麦凯恩在对外政策上仍在持续争吵.

spar for time 争取时间

spar with vt.与...练习拳击,与...争吵

extruded spar 挤压成型翼梁

labrador spar 拉长石

manganese spar 菱锰矿

subsidary spar 辐助翼梁

rear spar 后部梁，后梁

awning spar 天幕横木

cambered spar 弯曲翼梁

pearl spar 珍珠白云石

wing spar 翼梁

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