Mountain climbing ________ be very tiring, and many people f
| Mountain climbing ________ be very tiring, and many people feel sick ________ the atmosphere gets thinner.
|
可能相似的问题
你能帮帮他们吗
| Mountain climbing ________ be very tiring, and many people feel sick ________ the atmosphere gets thinner.
|
你能帮帮他们吗