Half sister
同父異母姐妹, 同母異父姐妹
?? 詞語組成解析
half
[h?f]
adj. 一半的，半個的;
n. 半;一半;（啤酒等飲料的）半品脫;（比賽、音樂會等的）半場;
adv. 一半;部份地;
sister
['s?st?]
n. 姐妹;（稱志同道合者）姐妹;修女;護士;
adj. 姐妹般的;同類型的;
v. 如姐妹般相待;
??? 情景例句
That's easy.
這很容易。
It is one thing to speak much and another to speak pertinently.
話講得多是一回事，講得恰當是另一回事。
They are only too delighted to accept the invitation.
他們非常樂意接受邀請。