hollow

英['hɔləu]美['hɔləu]

a.
1.空的
2.凹的
3.空洞的
4.虚伪的
5.无真正价值的
6.沉闷回荡的；空响的
n.
1.洞，坑，凹地
v.[T]
1.挖洞
v.[I,T]
1. 挖空（某物）；挖出（孔、洞）

名　词：hol'lowness

副　词：hol'lowly

同：	[v.] core out, dig, excavate, hollow out [n.] hole, holler [a.] empty, false, vacuous
反：	[a.] solid

empty，vacant，hollow，blank，open

这些形容词都有“空的”之意。
empty指空无一人或一物，或空洞无意义的。
vacant普通用词，侧重某物或某个位置没有被占用。
hollow指物体中间是空的。
blank指上面没有写字、印刷或做记号的空白表面，或指上面留着准备被填写的空白处。
open指未被占有，从而可被别人得到的。

The hollow funnel in the outlet of the kidney,into which urine is discharged before entering the ureter.
肾盂肾脏出口处一个尿液经其排出而进入输尿管的中空漏斗形内脏结构。收藏
The hollow cylinder that is carried by each member of a relay team and passed to the next runner.
中空的圆柱形棒,接力赛跑中每组的每个队员拿着跑并传给下一个队员。收藏
A cylinder is a hollow tube with a closed concave base that permits it to stand upright.
钢瓶是中空的管道，封闭的底部是凹入的，这样可以直立起来。收藏
A long hollow tube attached to a tanker aircraft, through which fuel flows to another aircraft being refueled in flight.
空中加油导管连结在飞机油箱上长的套空管，油料通过它流向空中被加油的飞机。收藏
Appendix (in full vermiform appendix)：Vestigial hollow tube attached to the cecum of the large intestine.
阑尾(全名名蚓状阑尾):解剖学上附于大肠的盲肠的一条退化性中空管。收藏

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remove the inner part or the core of
- the mining company wants to excavate the hillside
[同] dig, excavate, hollow
remove the interior of
- hollow out a tree trunk
[同] core out, hollow, hollow out

a cavity or space in something
- hunger had caused the hollows in their cheeks
a small valley between mountains
- he built himself a cabin in a hollow high up in the Appalachians
[同] holler, hollow

not solid; having a space or gap or cavity
- a hollow wall
- a hollow tree
- hollow cheeks
- his face became gaunter and more hollow with each year
[反] solid
deliberately deceptive
- false pretenses
- hollow (or false) promises
[同] false, hollow

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