23. Lone Star geyser trail is one of the easiest five mile roundtrip hikes in Yellowstone. This mostly _______ trail follows an old service road along the Firehole River through unburned forests of lodgepole pine. Lone Star geyser erupts approximately every three hours, and is a crowd pleaser. This trail can also be accessed by bicycle with the final approach to the geyser _______ foot.
(A) flat; in
(B) rocky; by
(C) level; on
(D) bumpy; off

答案:登入後查看
統計: A(6), B(42), C(134), D(10), E(0) #87960

詳解 (共 4 筆)

#630998
level (Adj.) 筆直的
2
0
#393465

on foot步行
2
0
#747859
 A crowd pleaser 是受公眾歡迎喜愛的一個人或物。
0
0
#768122
geyser 噴泉
0
0