21.   The flood also damaged an oil refinery, leaking oil into the Sunzha river which swept the oil slick further out to the Caspian Sea.

v. + oil >>共 489
heat 13.07%
sell 6.99%
add 5.29%
pump 4.28%
export 3.84%
use 3.50%
produce 2.85%
buy 2.48%
carry 2.23%
transport 2.19%
leak 0.48%
leak + n. >>共 184
information 17.72%
secret 5.39%
report 5.27%
document 4.19%
detail 3.47%
water 2.99%
news 2.75%
oil 2.51%
letter 2.28%
story 2.16%
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