Relaxes
v. （使）輕松( relax的第三人稱單數(shù) ); （使）松弛; 放寬; （使）放松
??? 情景例句
Can we? When?
行嗎 ？什么時候？
Free at last!
解脫了！
they can locate and steer clear of obstacles -- or locate flying insects on which they feed.
并能通過回聲來確定并躲開障礙物，或找到它們賴以為生的昆蟲。