v. 把……开除（或除名）；驱逐；排出（空气、水、气体等）
[
第三人称单数
expels
现在分词
expelling
过去式
expelled
过去分词
expelled
]
词根：expel
n.
expelling 驱逐；排出；压榨法
v.
expelling 驱逐（expel的ing形式）
1.The tenants disregarded their landlord's threat to expel them.
这些租客完全漠视房东要把他们驱赶出去的威胁。
2.A non-productive cough does not expel sputum from the respiratory tract.
干咳指不从呼吸道排出痰液的咳嗽。
3.The landlord threatened his tenants that he would expel them unless they paid him within a week.
房东威胁房客说，如果一周内不付房费给他，将把他们赶走。
4.Cultivating positive interpersonal relationships helped him expel solitary feelings.
培养积极的人际关系有助于他排除孤独感。
5.These cause the algal cells to expel the oil almost as soon as they have manufactured it.
这使得海藻细胞可以在制造出油料的同时便迅速排出。
6.When we exhale we expel air from our lungs.
当我们呼气的时候，肺将空气排出体外。
7.Dumbledore: And that there is sufficient evidence to expel you both?
邓布尔多：也有足够多的证据开除你们。
8.The heart muscles contract to expel the blood.
心脏肌肉收缩以挤压出血液。
9.Fill the syringe with solution, attach the needle and expel air.
注射器吸满漱口液，接上针头，排出注射器内空气。