pitches

1. vt. & vi. 投,掷,扔 throw (a ball, etc.)
2. vt. & vi. 搭(帐篷),扎(营) erect or fix (a tent or camp), especially for a short time
3. vt. & vi. 颠簸 move up and down as the bows rise and fall especially of a ship

1. [C]球场 a special marked-out area of ground on which football, etc. is played
2. [C]音调,音高 the degree of highness or lowness of a musical note or speaking voice
3. [S]程度,强度,高度 degree; level
4. [U]沥青 a black substance
5. [S]颠簸 a backward and forward movement of a ship or aircraft
6. [S][U]斜度,坡度 amount or degree of slope
7. [C]商贩摊位 place where a street trader usually does business or a street entertainer usually performs
8. [C]推销商品的话 persuasive talk or arguments used by a salesman to sell things

• pitch the ball抛球
• pitch camp扎营
• pitch the roof搭屋顶
• pitch a spear投标枪
• pitch tent搭帐篷

• pitch heavily颠簸得厉害
• pitch sharply〔steeply〕搭得太陡
• pitch violently剧烈地颠簸
• pitch in开始努力工作

• pitch against each other相互对垒
• pitch into积极投身于
• pitch into the job积极投入工作
• pitch off one's bicycle从自行车上跌下来
• pitch on a candidate随意挑选一个候选人
• pitch on a day随便挑选一个日子

• invade the pitch涌进球场
• throw a pitch投球

• deafening pitch震耳欲聋的声音
• high pitch高调
• low pitch低调
• sharp pitch陡坡

• concert pitch音乐会合奏调
• football pitch足球场

• at a high pitch高声地

• the pitch of success成功的顶峰
• the pitch of voice嗓音的高度

pitch in投入；作出贡献

tar pitch焦油沥青

coal tar pitch沥青；煤焦油沥青；硬煤沥青

pitch on选中；决定

pitch angle节面角（锥齿轮的）；螺旋角

variable pitch可变螺距；可变节距；变斜度

pitch diameter节圆直径

pitch control树脂障碍控制；行距控制；节距控制；音调控制

screw pitch螺纹距，螺距

pitch point节点；齿轮啮合节点

sales pitch推销商品的言辞

petroleum pitch石油沥青

football pitch足球场

pitch period齿节周期；音高周期

at fever pitch处于狂热状态；处于非常激动(或兴奋)状态

pitch circle齿节圆，节距圆

pitch curve啮合曲线；分度曲线

fixed pitch固定字宽

fever pitch n. 狂热；极度兴奋

thread pitch螺距

1. The pitch is too small to play football on.
   球场太小了, 无法踢足球。
2. Speculation has reached such a pitch that a decision will have to be made immediately.
   这种胡乱猜测甚嚣尘上，已经到了必须立即解决的程度了。
3. The pitch depends on the frequency.
   音调的高低是由频率决定的。
4. He has a very clever sales pitch.
   他推销商品的口才很好。
5. They used pitch to cover roofs.
   他们用沥青涂盖屋顶。
6. Pitch bleeds freely from break in the bark.
   树脂从树皮的裂口自然地流出来。

1. She pitched the ball as far as she could.
   她尽力把球投得远一些。
2. The boat pitched suddenly and keeled over.
   船突然上下颠簸,接著就倾覆了。
3. We pitched our tent on the border of the lake.
   我们在湖边搭帐篷。
4. Representatives went to Japan to pitch the company's newest products.
   销售代表前往日本推销本公司的最新产品。