careless
adj.not taking care;thoughtless不小心的，粗心的
Careless smokers throw their cigarette butts into the subway vent,blocking it up.
粗心的煙民把煙蒂扔進(jìn)地鐵的通風(fēng)孔里，造成了堵塞。
fearless
adj.without fear大膽的
Our fearless platoon sergeant led the attack and was the first one to be injured.
我們天不怕地不怕的副排長(zhǎng)帶頭發(fā)起了這次進(jìn)攻，他也是第一個(gè)負(fù)傷的。
headless
adj.inattentive不注意的
A headless man haunts the castle.
一個(gè)無(wú)頭幽靈常在城堡出現(xiàn)。
listless
adj.too tired to show interest or do anything倦怠的，沒(méi)精神的，冷淡的
Reacted to the latest crisis with listless resignation.
對(duì)最近的危機(jī)所作的反應(yīng)是無(wú)精打采的放棄
homeless
adj.無(wú)家可歸的
ex)A kind-hearted old man adopted the homeless child.一個(gè)好心的老頭收集養(yǎng)了這個(gè)無(wú)家可歸的小孩子。