Hit And Miss 碰巧的 ; 偶然随意 ; 尝试试验
hit-and-miss ventilator [建] 活动通风板
hit and miss governor 断续调 ; 断续调节器
hit-and-miss governor 断续调速器
Controls are hit and miss 操控不方便
Hit and miss rug 杂色碎布地毯
ADJ If something is hit-and-miss or hit-or-miss, it is sometimes successful and sometimes not. 碰运气的
Farming can be very much a hit-and-miss affair.
务农可能是件很要碰运气的事。
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