Last weekend my friends and me (I) decided to go for a ride in(on) my boat. I asked one friend to undue(undo) the two ropes that connected the boat to the doc(dock). But the the ropes were very taught(tight) and it was difficult to untie them. One(The) friend was so lazy, he didn't want to do any work and he just layed(laid) on the deck to get a suntan. Usually I would pay a fee to dock the boat, but the owner of the marina waved the fee. BTW Richard please tell us the right answers later. thank youuu

我喜欢说 我艹

我认为纹个“殺” 会非常cool

HI Olga,前面很多朋友已经给你解释了 开口就是开始说话的意思，有表示害羞，不满，或者责备的时候。 1 害羞---我不好意思开口说话 2不满---我不想再开口说话了 3责备---你怎么不开口说话！！ 其实开口除了说话的意思外，还有裂开的意思，比如---1天气太冷了，我的手（脚）都开口了 2这件衣服穿了太久了，有些地方都开口了。 所以你还可以记住，开口还有裂开，撕裂的意思 hope it can help you somehow

In a word,下 means you are going to do something .here if you dont use 下,and only with 单 ,我这就单------im going to money! its obviously wrong,becoz of lacking a verb. Same here, if no 下，no verb in this sentence,which must be a wrong one. Mostly,下 is usually a role-playing as a verb Hope it can help you somehow

ohh thank you Richard !