把绳子拉紧，别松开Keep the rope taut.把金属线拉紧,然后把两头捻紧.Pull the wire tight and then twist the ends round.弓箭手拉紧弓弦将箭瞄准靶子.The archer strung his bow and aimed an arrow at the target....
Why do hummingbirds and gorillas both have backbones?为什么蜂鸟和大猩猩都有脊骨?Two gorillas have escaped from the zoo.两只大猩猩从动物园逃走了.the similitude between humans and gorillas人类和大猩猩的相像Keeper Emily Pugh , 22, said Kera was already sett...