Minorant
弱函數
??? 情景例句
Hi. What can I do for you?
嗨 。我能幫你嗎？
Fishing is often frustrating.
釣魚常常會遭到挫敗。
'I have just arrive in Scotland and I'm staying at a Youth Hostel.'
“我剛到蘇格蘭，我現住在一家青年招待所。”